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Pulmonary Fibrosis

What is pulmonary fibrosis?

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Pulmonary fibrosis is a chronic lung disease in which lung tissue becomes scarred and stiff, making it harder for the lungs to expand and transfer oxygen into the bloodstream. Over time, this scarring can make breathing increasingly difficult and reduce oxygen levels in the body, leading to symptoms such as breathlessness, fatigue, and reduced physical endurance.

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Pulmonary fibrosis does not always progress at the same speed for everyone. Some people experience slow changes over many years, while others may notice symptoms worsening more quickly. Because the condition affects each person differently, ongoing monitoring and individualized care are important.

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Types and forms of pulmonary fibrosis

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Pulmonary fibrosis can occur for different reasons, and in some cases the exact cause is unknown.

• Idiopathic pulmonary fibrosis (IPF) – the most common form, where the cause of lung scarring is unknown.Secondary pulmonary fibrosis
• Secondary pulmonary fibrosis – fibrosis that develops due to another cause such as autoimmune diseases, environmental exposures, certain medications, or radiation therapy.Familial pulmonary fibrosis
• Familial pulmonary fibrosis – a rare form that runs in families due to genetic factors.Progressive fibrosing interstitial lung diseases (PF-ILD)
• Progressive fibrosing interstitial lung diseases (PF-ILD) – a group of lung diseases that may lead to progressive scarring similar to pulmonary fibrosis.

Common forms include:

Understanding the type of pulmonary fibrosis can help guide monitoring and treatment decisions with your healthcare team.

How pulmonary fibrosis develops and who it affects

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Pulmonary fibrosis develops when repeated injury or inflammation in the lungs leads to permanent scarring of lung tissue. As scar tissue builds up, the lungs become less flexible and oxygen transfer becomes less efficient.

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The exact cause is often unclear, but potential contributing factors may include:

• Long-term exposure to environmental irritants (dust, chemicals, or pollution)
• Autoimmune conditions such as rheumatoid arthritis or scleroderma
• Certain medications or radiation treatments
• Genetic factors
• Aging

Pulmonary fibrosis is more commonly diagnosed in adults over the age of 50, although it can occur at other ages. The condition affects people differently, and symptom progression can vary widely.

While pulmonary fibrosis primarily affects the lungs, reduced oxygen levels can influence overall energy levels, physical activity, and quality of life.

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Common symptoms of pulmonary fibrosis may include:

• Atemnot, vor allem bei körperlicher Anstrengung
• A persistent dry cough
• Müdigkeit oder wenig Energie
• Reduced exercise tolerance
• Chest discomfort or tightness
• Unintentional weight loss
• Muscle or joint aches
• Clubbing (widening of fingertips in some cases)
• Difficulty performing everyday activities due to breathlessness

Symptoms often develop gradually, which can make them easy to overlook at first. If breathing changes or fatigue become persistent, discussing these symptoms with a healthcare professional can help determine the next steps.