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Yes, GVHD can cause restrictive lung complications. When donor T cells attack healthy lung tissue, it triggers long-term inflammation that can lead to scarring and narrowing of the small airways — making it harder to breathe and reducing how much air the lungs can hold.

The most common lung complication in chronic GVHD is Show Full Answer

Yes, GVHD can cause restrictive lung complications. When donor T cells attack healthy lung tissue, it triggers long-term inflammation that can lead to scarring and narrowing of the small airways — making it harder to breathe and reducing how much air the lungs can hold.

The most common lung complication in chronic GVHD is bronchiolitis obliterans syndrome (BOS), affecting about 14% of people with chronic GVHD. Other lung complications can include:

- Organizing pneumonia
- Interstitial lung disease
- Pulmonary fibrosis (scar tissue in the lungs) Some people with BOS have no symptoms at first. When symptoms do appear, they can include:

- A dry cough lasting more than 2–4 weeks
- Shortness of breath
- Chest tightness or difficulty breathing deeply
- Wheezing

Certain factors may increase the risk of developing lung complications, such as being older at the time of transplant, having a donor tissue-type mismatch, or having had a respiratory infection within the first 100 days post-transplant.

If any new or worsening breathing symptoms are noticed, reaching out to a care team right away is really important — early detection can make a meaningful difference in managing these complications.

 AI-generated responses are not a substitute for medical advice. These services are not intended to diagnose, treat, or cure any condition or disease. Always ask your doctor about specific health concerns.

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