Category FAQs Search : Lung Disease
Question: Lung disease causes
Answer: Some causes of lung disease include:
1. Smoking
2. Germs, like viruses, bacteria and fungi
3. Connective tissue and inflammatory diseases, like rheumatoid arthritis (RA), lupus, scleroderma and sarcoidosis
4. Inhaling harmful substances, like asbestos and radon
5. Allergic reactions to something you inhale (hypersensitivity pneumonitis)
6. Certain medications or treatments
7. Genetic changes — either that you’re born with or that you acquire as you get older
(Source: Cleveland Clinic, 31 Jan 2026)
Source Link: https://my.clevelandclinic.org/health/diseases/lung-disease