Crohn’s Disease Flare-Up: What to Do When Your Symptoms Suddenly Get Worse

Key takeaways
- A Crohn’s flare is a period when symptoms return or get worse after the disease has been quieter.
- Common flare symptoms include diarrhea, abdominal pain or cramping, fatigue, reduced appetite, weight loss, and sometimes fever or blood in the stool.
- Worsening symptoms do not always mean Crohn’s inflammation is responsible. Infections and other problems can sometimes look like a flare.
- Do not stop or change your Crohn’s medication on your own. Contact your healthcare team if symptoms are worsening or different from usual.
- Severe abdominal pain, persistent vomiting, significant bleeding, a swollen abdomen, severe dehydration, or being unable to pass stool or gas can require urgent medical assessment.
- There is not always one obvious trigger. Missing medication, smoking, and NSAIDs such as ibuprofen can contribute to problems, while the relationship between food, stress, and Crohn’s inflammation is more complicated.
You can be doing relatively well with Crohn’s disease and then notice something changing.
Maybe you are going to the bathroom more often. The abdominal pain is back. You are suddenly exhausted. Food feels harder to manage, or symptoms that had become predictable are starting to interfere with your day again.
Your first thought may be: Is this a Crohn’s flare?
A Crohn’s flare means symptoms have returned or become more active after a period when the disease was quieter. Diarrhea, abdominal pain, and other familiar symptoms can return gradually or sometimes seem to get worse quite quickly. [1,2]
But worsening symptoms do not always mean Crohn’s inflammation is definitely active. Infections and other digestive problems can sometimes cause very similar symptoms. That is why a significant change is worth discussing with your healthcare team rather than trying to diagnose or treat a flare yourself. [3]
For now, focus on what you can do: pay attention to what has changed, keep taking your prescribed medication unless your healthcare team tells you otherwise, stay hydrated, make eating easier where you can, and know which symptoms need urgent medical attention.
With mama health, you can also ask questions about Crohn’s, understand your labs and medical reports, find specialists and care near you, and learn from the experiences of other people living with the same condition.
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What can a colonoscopy show in Crohn’s disease?
A colonoscopy allows a doctor to look directly at the inside of your colon and usually the terminal ileum, the last part of the small intestine.
During the procedure, a flexible tube with a camera is passed through the rectum and around the colon.
The doctor looks at the bowel lining for signs of inflammation and other abnormalities.
In Crohn’s disease, this can include:
- redness and swelling
- ulcers
- patchy areas of inflammation
- changes to the normal surface of the bowel
- narrowing
- bleeding or fragile tissue
- inflammation in the terminal ileum
The doctor can also take biopsies, which are tiny tissue samples examined under a microscope.
This is important because what the bowel looks like through the camera and what the tissue looks like under a microscope provide different information.
What does Crohn’s disease look like on a colonoscopy?
Crohn’s can have several characteristic appearances, but there is no single colonoscopy finding that appears in everyone with the condition.
One feature doctors may see is patchy inflammation.
Unlike inflammation that runs continuously along the bowel, Crohn’s can affect one area while leaving another area relatively normal. These separated areas are sometimes called skip lesions.
Doctors may also see ulcers.
These can range from small superficial ulcers to larger or deeper areas of ulceration.
More pronounced Crohn’s inflammation can sometimes create a cobblestone appearance, where areas of swollen tissue are separated by deeper ulcers.
Inflammation around the terminal ileum is also common in Crohn’s.
These findings can support a diagnosis, but they are not interpreted on their own. Your gastroenterologist will consider the overall pattern and other test results before deciding what the findings mean. [1,2]
What does “ileitis” mean on a colonoscopy report?
Ileitis means inflammation of the ileum, the final part of the small intestine.
The terminal ileum is particularly relevant in Crohn’s because it is a common location for the disease.
If your report says terminal ileitis, it means the doctor saw evidence of inflammation in this area.
It does not, by itself, mean you definitely have Crohn’s disease.
Ileitis can have causes other than Crohn’s, including certain infections and medication-related injury. The appearance of the inflammation, biopsy findings, symptoms, medical history, and other investigations help doctors work out the cause. [1,2]
So if your report says “ileitis,” the useful question for your gastroenterologist is:
“What do you think is causing the inflammation?”
rather than assuming the word itself confirms a diagnosis.
What do ulcers mean on a Crohn’s colonoscopy?
Ulcers are areas where inflammation has damaged the surface of the bowel lining.
They can occur in Crohn’s disease.
Your report may describe them in different ways, including aphthous ulcers, superficial ulcers, or deep ulcers.
Aphthous ulcers are small areas of ulceration. More active or severe inflammation can be associated with larger or deeper ulcers.
The presence, size, depth, and extent of ulcers can contribute to a doctor's assessment of disease activity.
But an ulcer is not a diagnosis by itself.
The pattern matters.
Your gastroenterologist will consider where the ulcers are, what the surrounding bowel looks like, what the biopsies show, and whether the overall picture is consistent with Crohn’s.
What does “cobblestoning” mean in Crohn’s disease?
Cobblestoning describes a particular appearance of the bowel lining that can occur in Crohn’s disease.
Deep ulcers can intersect with areas of swollen or relatively preserved tissue, creating a surface that resembles cobblestones.
It is a classic description associated with Crohn’s.
Seeing the word on a report can sound alarming, but it should not be interpreted in isolation as a prediction of what will happen next.
It describes an appearance.
Your healthcare team still needs to consider how much of the bowel is affected, how active the disease appears overall, whether complications are present, and what other tests show.
What are “skip lesions” on a colonoscopy?
Skip lesions are areas of inflamed bowel separated by areas that appear relatively unaffected.
This patchy pattern is characteristic of Crohn’s disease.
For example, the doctor might see inflammation in the terminal ileum and another section of the colon while the bowel between those areas looks relatively normal.
This is different from the continuous pattern of inflammation more typically associated with ulcerative colitis.
However, real-world appearances are not always textbook-perfect.
That is another reason doctors use colonoscopy alongside biopsies and other information rather than relying on one visual feature to distinguish inflammatory bowel diseases. [1,2]
What does a stricture mean on your colonoscopy report?
A stricture is an area where the bowel has become narrowed.
Crohn’s can lead to narrowing because of active inflammation, longer-term scarring, or a combination of both.
During a colonoscopy, the doctor may see a narrowed area or find that the scope cannot safely pass through part of the bowel.
A stricture can be important because significant narrowing can make it harder for food and bowel contents to pass through.
But a colonoscopy cannot always tell doctors everything they need to know about a stricture.
Imaging such as magnetic resonance enterography (MRE), intestinal ultrasound, or CT enterography may provide more information about the bowel wall and areas beyond the reach of the colonoscope. [2]
If a stricture appears on your report, ask:
“How significant is the narrowing, and do I need another test to assess it?”
If you develop severe abdominal pain, persistent vomiting, a swollen abdomen, or an inability to pass stool or gas, seek urgent medical assessment because these can occur with bowel obstruction.
Why are biopsies taken during a Crohn’s colonoscopy?
Biopsies let a pathologist examine tiny samples of bowel tissue under a microscope.
This can reveal changes that are not obvious from the colonoscopy camera alone.
Biopsies may be taken from inflamed areas and from areas that appear normal.
When Crohn’s is being investigated, the pathology findings can help doctors understand the type and pattern of inflammation and distinguish between possible causes.
You may see terminology such as:
- active inflammation
- chronic inflammation
- chronic active inflammation
- crypt changes
- granulomas
- no significant abnormality
These words need context.
For example, chronic inflammation generally indicates changes associated with inflammation that has been present over time. “Active” refers to features of current inflammatory activity.
Neither phrase, on its own, tells you everything about the severity or future course of your Crohn’s.
What does a granuloma mean on a Crohn’s biopsy?
A granuloma is a particular collection of immune cells that can sometimes be seen under the microscope in Crohn’s disease.
When an appropriate type of granuloma is found in the right clinical context, it can support a Crohn’s diagnosis.
But there are two important things to know.
First, many people with Crohn’s do not have granulomas on their biopsies.
Not finding one does not rule Crohn’s out.
Second, granulomas can have other causes, so the pathologist and gastroenterologist still interpret the finding in the context of the whole investigation.
Do not worry if your biopsy report does not mention granulomas.
They are one possible clue, not a requirement for Crohn’s disease.
Can a colonoscopy confirm a Crohn’s disease diagnosis?
A colonoscopy with biopsies is an important part of diagnosing Crohn’s disease, but there is no single test that confirms every case.
Doctors generally make a Crohn’s diagnosis using a combination of information.
That can include:
- your symptoms and medical history
- physical examination
- blood tests
- stool tests
- ileocolonoscopy and biopsies
- imaging of the small intestine
Current ECCO diagnostic guidance recommends ileocolonoscopy with biopsies together with intestinal imaging as first-line investigations in people with suspected inflammatory bowel disease. [2]
That is because Crohn’s can occur anywhere in the digestive tract and can affect the bowel in ways that colonoscopy alone cannot fully assess.
So you may finish a colonoscopy and still be asked to have another test.
That does not necessarily mean the colonoscopy was inconclusive or unsuccessful.
The tests answer different questions.
Can you have Crohn’s disease if your colonoscopy is normal?
Yes. A normal colonoscopy does not always exclude Crohn’s disease.
A standard colonoscopy examines the colon and usually the terminal ileum.
But Crohn’s can affect other parts of the small intestine that the scope cannot reach.
If your symptoms, blood tests, stool tests, or other information continue to raise concern about Crohn’s despite a normal colonoscopy, your healthcare team may consider additional testing.
This can include MRE, intestinal ultrasound, or capsule endoscopy in selected situations. [2]
Capsule endoscopy involves swallowing a small camera that takes images as it travels through the digestive tract.
It is not appropriate for everyone—for example, suspected narrowing can affect whether capsule endoscopy is suitable—so the choice of test depends on the individual situation.
What does a normal colonoscopy mean if you already have Crohn’s?
If you have established Crohn’s and your colonoscopy shows little or no visible inflammation, that can be encouraging.
It may indicate endoscopic remission or healing, depending on the findings and terminology used.
This matters because modern Crohn’s treatment aims beyond symptom control alone.
You may feel well while inflammation remains. Conversely, you can have some digestive symptoms even when Crohn’s inflammation has improved considerably.
That is why colonoscopy can sometimes be used to assess how well treatment is controlling the disease. [2,3]
A reassuring colonoscopy does not mean Crohn’s has been cured.
Crohn’s is a chronic condition, and maintenance treatment and follow-up may still be needed.
Do not stop medication because a colonoscopy looks good unless your healthcare team has specifically discussed changing your treatment.
What does SES-CD mean on a Crohn’s colonoscopy report?
SES-CD stands for Simple Endoscopic Score for Crohn’s Disease.
It is one system used to describe the amount of Crohn’s activity seen during ileocolonoscopy.
The score considers features including:
- the size of ulcers
- how much of the bowel surface is ulcerated
- how much of the bowel surface is affected
- whether there is narrowing
These features are assessed in different sections of the bowel.
You may see an SES-CD number in your report, particularly in specialist IBD care or when disease activity is being assessed systematically.
The number should not be interpreted as a standalone verdict on how “bad” your Crohn’s is.
Your healthcare team considers it alongside your symptoms, previous colonoscopies, biomarkers, imaging, treatment, and overall clinical situation.
If you see an unfamiliar score in your report, mama health can help you understand what the terminology refers to, while your gastroenterologist can explain what your individual score means medically.
What does “mild,” “moderate,” or “severe” inflammation mean?
These words describe the degree of inflammation seen or reported, but their exact meaning depends on the context in which they are used.
A colonoscopy report may describe a particular section of bowel as mildly, moderately, or severely inflamed.
That is not necessarily identical to describing your overall Crohn’s disease as mild, moderate, or severe.
Your overall situation can depend on much more than the appearance of one area.
Doctors may consider:
- how much bowel is affected
- the depth of ulcers
- symptoms
- blood and stool markers
- strictures, fistulas, or abscesses
- nutritional effects
- previous disease behavior
- imaging findings
So if your report says “mild inflammation,” do not assume that automatically tells you what treatment you need.
And if it says “severe,” do not assume the word predicts your long-term future.
Ask how the finding fits into the bigger picture.
Why might your colonoscopy results and symptoms not match?
Because symptoms and Crohn’s inflammation do not always move together.
You can have substantial symptoms without a large amount of visible inflammation.
You can also feel relatively well despite inflammation still being present.
This is why modern Crohn’s follow-up does not rely only on how you feel. Objective information from biomarkers, imaging, and endoscopy can help healthcare teams assess disease activity and treatment response. [2,3]
If your colonoscopy looks reassuring but you are still having diarrhea, pain, or bloating, that does not mean your symptoms are imaginary.
Your healthcare team may consider other explanations and decide whether further assessment is needed.
Likewise, if you feel well but your colonoscopy still shows inflammation, your doctor may want to discuss whether the current treatment is achieving its intended target.
What happens after a colonoscopy suggests Crohn’s disease?
The next step depends on how complete the diagnostic picture is.
If biopsies were taken, you may need to wait for the pathology report.
Your healthcare team may also want additional blood tests, stool tests, or imaging.
Once the available information has been reviewed, your gastroenterologist can discuss whether the findings support a Crohn’s diagnosis and what they mean for you.
If Crohn’s is diagnosed, the next questions usually become:
Where is the disease?
How active is it?
Are there complications?
What treatment makes sense?
Our guide to what happens after a new Crohn’s diagnosis explains that next stage in more detail.
What happens after a colonoscopy if you already have Crohn’s?
If the colonoscopy was performed to assess established Crohn’s, what happens next depends on what it shows.
If inflammation has improved substantially, your healthcare team may continue the current maintenance strategy.
If significant inflammation remains, they may consider whether the current treatment is achieving its goal.
That does not mean one abnormal colonoscopy result automatically leads to a new medicine.
Your gastroenterologist may consider your symptoms, biomarkers, imaging, how long you have been taking the treatment, previous response, and other factors before deciding what to do.
If treatment changes are being discussed, our guide to Crohn’s disease treatment options explains the main medication groups and the questions worth asking.
What should you ask your doctor about your Crohn’s colonoscopy results?
You do not need to understand every line of the report.
A few questions can make the findings much clearer:
- Which parts of my bowel did you examine?
- Where did you find inflammation?
- Was my terminal ileum affected?
- Were there ulcers?
- Did you see any narrowing?
- Were you able to examine the whole colon and terminal ileum?
- Where were biopsies taken?
- What did the biopsies show?
- Do these results support a Crohn’s diagnosis?
- Do I need imaging of the small intestine?
- If I already have Crohn’s, has the inflammation improved since my previous assessment?
- What happens next?
- Do these findings change my treatment?
If your doctor uses a term you do not understand, ask them to explain it.
Medical reports are written primarily to communicate between healthcare professionals. You are not failing some test by finding them difficult to read.
How can mama health help you understand a colonoscopy report?
A colonoscopy report can arrive long before you have had a chance to discuss every line with your gastroenterologist.
That gap can be uncomfortable.
You might see terminal ileitis and wonder whether it confirms Crohn’s. You might see ulceration and worry about what it means. Or your report might contain an SES-CD score without explaining what the letters stand for.
With mama health, you can:
- Understand your medical reports. Make unfamiliar terms such as ileitis, ulceration, biopsies, strictures, and SES-CD easier to understand.
- Ask questions about Crohn’s. Get clear information about terminology and the tests commonly used when Crohn’s is investigated or followed up.
- Learn from people living with Crohn’s. Explore what other people experienced around colonoscopy preparation, waiting for results, follow-up appointments, and ongoing care.
- Find specialists and care near you. Explore relevant gastroenterology and IBD care when you want to understand what specialist support is available.
mama health does not determine whether a colonoscopy confirms Crohn’s disease, assess how severe your disease is, or decide whether treatment should change.
Those conclusions belong with your healthcare team.
But understanding the words on the page can make the conversation with them much easier.
What should you remember when reading your Crohn’s colonoscopy results?
A colonoscopy report is one part of the story.
Words such as ulcer, ileitis, stricture, or cobblestoning can sound frightening when you see them without context.
Try not to turn one word into a conclusion.
An abnormal finding does not tell you everything about how your Crohn’s will behave.
A normal-looking colonoscopy does not always exclude disease elsewhere in the digestive tract.
And if you already have Crohn’s, a good colonoscopy result does not necessarily mean treatment and follow-up are finished.
Instead, bring the report back to three questions:
What did you find?
How does it fit with my other results?
What happens next?
Those answers are much more useful than trying to interpret the report one unfamiliar word at a time.
What does a Crohn’s flare feel like?
A Crohn’s flare means symptoms have returned or become more active after a period of remission or lower disease activity. [1,2]
What that feels like depends on your Crohn’s.
Common symptoms can include:
- diarrhea
- abdominal pain or cramping
- more frequent bowel movements
- fatigue
- reduced appetite
- weight loss
- nausea
- fever
- blood in the stool
Crohn’s can also affect areas outside the digestive tract, so some people notice problems involving their joints, skin, or eyes when their disease is active. [2]
Your flare may not look exactly like someone else's.
For one person, the first sign might be needing the bathroom several extra times each morning. For someone else, it might be abdominal pain, exhaustion, or suddenly struggling to finish meals.
Over time, you may become more familiar with the symptoms that tend to appear when your Crohn’s becomes more active.
What should you do when Crohn’s symptoms suddenly get worse?
Start by noticing what has changed and how quickly it has changed.
Think about:
- when the symptoms started
- how often you are having bowel movements
- whether there is blood
- whether you have a fever
- whether you are vomiting
- whether you can eat and drink
- whether the pain is different or more severe than usual
- whether you have recently missed medication
- whether you have started any new medicines
If symptoms are clearly worsening, contact your IBD team or healthcare provider.
They may want to understand whether Crohn’s inflammation is active or whether something else could be causing your symptoms.
That can involve blood tests, stool tests, or sometimes imaging or endoscopy depending on the situation.
You do not need to decide for yourself whether this is “definitely a flare” before asking for help.
Could worsening symptoms be something other than a Crohn’s flare?
Yes. Symptoms that feel like a Crohn’s flare are not always caused by active Crohn’s inflammation.
This is an important point because diarrhea, pain, and cramping have many possible causes.
An intestinal infection can produce symptoms that look very similar to IBD activity. Clostridioides difficile (C. diff) is one infection healthcare teams may consider when someone with IBD develops worsening diarrhea, abdominal pain, cramping, or fever. [3]
Other digestive problems can cause symptoms too.
And some people continue to experience abdominal pain or bowel symptoms even when objective tests do not show active Crohn’s inflammation.
This is why restarting an old medication, taking leftover steroids, or changing your current Crohn’s treatment without medical advice can be risky.
Your healthcare team may need to work out why your symptoms have changed before deciding what should happen next.
How do doctors check whether you are having a Crohn’s flare?
Your healthcare team may use your symptoms together with blood tests, stool tests, and sometimes imaging or endoscopy.
A blood test may include inflammatory markers such as C-reactive protein (CRP).
A stool test may measure fecal calprotectin, which can provide information about inflammation in the digestive tract. Stool testing can also help check for certain infections.
Depending on your symptoms and Crohn’s history, your doctor may consider imaging or endoscopy as well.
If you receive results filled with terms such as CRP, calprotectin, hemoglobin, inflammation, or infection markers, mama health can help you understand your labs and medical reports in clearer language.
Your healthcare team remains responsible for interpreting what those results mean for you and deciding whether treatment needs to change.
Should you keep taking your Crohn’s medication during a flare?
Keep taking your prescribed Crohn’s medication unless your healthcare team tells you to change it.
It can be tempting to adjust medication yourself when symptoms suddenly worsen.
You may wonder whether you should double a dose, restart an old steroid prescription, skip a medicine because you feel unwell, or stop something that seems not to be working.
Do not make those changes without medical advice.
Missing or incorrectly taking prescribed IBD medication can contribute to flares, and suddenly stopping some medicines can create additional problems. [4]
If you think your treatment has stopped working, tell your healthcare team.
That conversation may lead to testing, a dose or schedule change in some circumstances, or a discussion about another treatment. But the first step is understanding what is causing the symptoms.
How are Crohn’s flares treated?
Treatment depends on how active the disease is, where the inflammation is, what medication you already take, and whether there are complications.
There is no single medication used for every Crohn’s flare.
In some situations, corticosteroids such as budesonide or systemic steroids may be used for a limited period to control active inflammation. Steroids are generally intended for short-term control rather than long-term maintenance because repeated or prolonged use can cause significant side effects. [4]
For someone already taking a biologic or another targeted treatment, the healthcare team may first want to understand whether inflammation is genuinely active and whether the current treatment is still doing its job.
The plan might involve changes to treatment, but that decision depends on the individual situation.
A flare therefore does not automatically mean you need steroids, and it does not automatically mean your current medication has permanently failed.
What should you eat during a Crohn’s flare?
During a flare, the priority is getting enough nutrition and fluid while making eating as manageable as possible.
There is no universal Crohn’s flare diet.
Some people find smaller meals and softer foods easier when they have diarrhea, pain, nausea, or poor appetite.
Depending on what you tolerate, options might include:
- rice
- potatoes without the skin
- pasta
- oatmeal or porridge
- bananas
- applesauce or stewed fruit
- well-cooked vegetables
- eggs
- fish
- tender chicken
- tofu
- yogurt if you tolerate dairy
- smooth soups
These foods do not treat Crohn’s inflammation. They are simply examples that some people find easier to eat when symptoms are active.
If you have a bowel stricture, your dietary needs can be different and your healthcare team or dietitian may give you specific advice about fiber and food texture.
If you are unable to eat enough, losing weight, or becoming frightened of eating because of symptoms, tell your healthcare team.
For a more detailed guide, see our article on what to eat with Crohn’s disease during flares and remission.
How important is hydration during a Crohn’s flare?
Hydration becomes particularly important when frequent diarrhea or vomiting is causing fluid loss.
Take fluids regularly if you are able to drink.
With significant diarrhea, you can lose electrolytes as well as water. In some circumstances, an oral rehydration solution may be more appropriate than relying on plain water alone.
Watch for possible signs of dehydration, including:
- feeling very thirsty
- dry mouth
- urinating less than usual
- dark urine
- dizziness or lightheadedness
- unusual weakness
If you cannot keep fluids down or appear to be becoming significantly dehydrated, seek medical advice.
What can trigger a Crohn’s flare?
There is not always a clear trigger.
Sometimes Crohn’s becomes active despite someone doing everything they were supposed to do.
That is important because a flare can easily turn into a search for something you did “wrong.”
Crohn’s does not work that simply.
There are, however, factors associated with worsening disease or symptoms.
Can missing medication trigger a Crohn’s flare?
Not taking prescribed IBD medication consistently can increase the risk of symptoms returning. [4]
This includes stopping medication because you feel well.
Remission does not necessarily mean Crohn’s has gone away. Maintenance treatment is often intended to help keep the disease controlled.
If you are struggling to take a medicine because of side effects, cost, injections, scheduling, or another reason, tell your healthcare team rather than simply stopping it.
Can ibuprofen or other NSAIDs trigger Crohn’s symptoms?
Non-steroidal anti-inflammatory drugs, or NSAIDs, can cause gastrointestinal problems and may worsen IBD symptoms.
These medicines include ibuprofen, naproxen, and aspirin.
The Crohn’s & Colitis Foundation recommends avoiding NSAIDs for IBD-related pain because they can damage the gastrointestinal tract and may mimic or worsen IBD symptoms. [5]
If you need pain relief, ask your healthcare provider which option is appropriate for you rather than assuming an over-the-counter medicine is automatically safe.
Can smoking trigger Crohn’s flares?
Smoking is associated with worse outcomes in Crohn’s disease.
People with Crohn’s who smoke have a higher risk of flares and surgery, and smoking can make the disease harder to manage. [6]
If you smoke, stopping is one of the more meaningful lifestyle changes you can discuss with your healthcare team.
Quitting can be difficult, and support is available.
Can stress trigger a Crohn’s flare?
Stress and Crohn’s have a complicated relationship.
Many people living with IBD feel that stress makes their symptoms worse. Stress can also affect sleep, appetite, bowel habits, and how strongly symptoms are experienced.
But feeling stressed does not mean you caused your Crohn’s flare.
Crohn’s is an immune-mediated inflammatory disease. It is not simply the result of being anxious, working too hard, or failing to relax.
Stress management can still be useful for wellbeing and coping with symptoms. It just should not replace appropriate medical assessment when Crohn’s symptoms are getting worse.
Can food trigger a Crohn’s flare?
Food can make symptoms more noticeable without necessarily causing Crohn’s inflammation.
For example, coffee might worsen urgency. A fatty meal might make diarrhea harder to manage. Raw vegetables may feel uncomfortable when your bowel is already sensitive.
That does not automatically mean those foods caused the inflammatory flare.
This distinction can help prevent an increasingly restrictive diet every time symptoms worsen.
If you want more detail, our guide to the Crohn’s disease diet, trigger foods, and foods to avoid explains this difference further.
Can you manage a mild Crohn’s flare at home?
Some symptoms can be made more manageable at home while you are contacting or following advice from your healthcare team.
That may include:
- drinking enough fluids
- eating smaller meals if larger meals are difficult
- choosing food textures you tolerate
- getting enough rest
- continuing prescribed medication as directed
- avoiding smoking
- avoiding NSAIDs unless a healthcare professional has specifically advised otherwise
But home measures do not tell you whether Crohn’s inflammation is active, and they are not a substitute for treatment when treatment is needed.
If symptoms persist, worsen, or are different from your usual pattern, contact your healthcare team.
When should you get urgent medical help during a Crohn’s flare?
Some symptoms need more urgent medical assessment rather than waiting for a routine appointment.
Seek urgent medical help for symptoms such as:
- severe or rapidly worsening abdominal pain
- persistent vomiting or being unable to keep fluids down
- a markedly swollen or distended abdomen
- being unable to pass stool or gas alongside severe abdominal symptoms
- significant or ongoing gastrointestinal bleeding
- black, tarry stools
- fainting, severe dizziness, or other signs of significant blood loss
- high fever with severe symptoms
- signs of severe dehydration
Crohn’s can cause complications including bowel obstruction, abscesses, fistulas, and significant bleeding.
Do not assume severe new symptoms are simply a normal flare.
If you are unsure how urgent your situation is, seek medical advice.
How long does a Crohn’s flare last?
There is no set length for a Crohn’s flare.
Symptoms can last days, weeks, or longer depending on what is causing them, how active the disease is, and how it responds to treatment.
That makes questions such as “How long should I wait this out?” difficult to answer with a fixed number of days.
If symptoms are clearly worsening, interfering substantially with eating or drinking, or not settling, contact your healthcare team rather than waiting for an arbitrary deadline.
The earlier question is often more useful:
“Is this different enough from my usual Crohn’s that my healthcare team should know about it?”
What does a flare mean for your current Crohn’s treatment?
One flare does not automatically mean your treatment has completely failed.
Your healthcare team may first need to confirm that active inflammation is causing the symptoms.
If Crohn’s is active despite treatment, they may look at several possibilities.
Has the medicine had enough time to work? Is the dose or schedule appropriate? Has the treatment become less effective? Would another type of medicine make more sense? Is there a complication that medication alone cannot solve?
The answers depend on the treatment and your Crohn’s.
If you want to understand the different types of medication that may come up in those conversations, see our guide to Crohn’s disease treatment options.
How can other people’s experiences help during a Crohn’s flare?
Sometimes the hardest parts of a flare are not questions a medical guideline answers.
How do you get through a workday when you keep needing the bathroom?
What do people eat when nothing sounds appealing?
How do you manage a train journey?
What do you tell friends when you cancel plans again?
How do other people cope with the exhaustion?
mama health lets you learn from the experiences of other people living with the same condition, alongside information grounded in trusted medical sources.
Someone else's experience cannot tell you whether your Crohn’s is active or what treatment you need.
But it can show you how other people have handled the everyday situations that come with a flare.
Sometimes knowing that someone else has faced the same awkward, frustrating, or exhausting problem is useful in a way a medical definition cannot be.
How can mama health help when your Crohn’s symptoms get worse?
A flare can create a lot of questions very quickly.
With mama health, you can:
- Ask questions about Crohn’s. Understand unfamiliar terms and get information about the questions that come up when symptoms change.
- Understand your labs and reports. Make results such as CRP, fecal calprotectin, blood counts, and other medical terminology easier to understand before discussing them with your healthcare team.
- Learn from people living with Crohn’s. Explore how others deal with food, fatigue, work, travel, bathroom urgency, and other parts of life during difficult periods.
- Find specialists and care near you. Explore gastroenterology and other relevant care when you want to understand what support is available.
mama health cannot tell you whether your symptoms are definitely a Crohn’s flare or decide whether your treatment should change.
Those questions need your healthcare team.
But when you are trying to understand what is happening, what a medical term means, or how other people have dealt with similar experiences, you do not have to figure everything out alone.
What should you remember when a Crohn’s flare happens?
A flare can be frustrating, particularly after a long period of feeling well.
It can also make you question everything.
Was it something I ate? Did I do too much? Is my medication not working anymore? Is this going to get worse?
You may not have those answers immediately.
Start with what you do know.
Your symptoms have changed.
Keep taking prescribed medication unless your healthcare team tells you otherwise. Focus on fluids and enough nutrition where possible. Avoid making major treatment changes yourself. And contact your healthcare team when symptoms are worsening, persistent, or different from your usual pattern.
Most importantly, do not blame yourself.
Sometimes there is an identifiable factor associated with a flare. Sometimes there is not.
Having Crohn’s means the disease can become active again even when you have been doing everything right.
The useful question is not always:
“What did I do to cause this?”
It is:
“What do I need now, and when should I ask for help?”
This content is informational and is not medical advice.
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- Crohn’s & Colitis Foundation. What Is a Flare?
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Symptoms & Causes of Crohn’s Disease. National Institutes of Health.
- Crohn’s & Colitis Foundation. Medication Options for IBD: Antibiotics and Infection.
- Crohn’s & Colitis Foundation. Medicines for Crohn’s Disease and Ulcerative Colitis.
- Crohn’s & Colitis Foundation. Pain Management for IBD Patients.
- Crohn’s & Colitis Foundation. General Health Maintenance for IBD.
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Crohn’s Disease. National Institutes of Health.
