DefinitionBy Mayo Clinic staff
Interstitial (in-tur-STISH-ul) lung disease describes a large group of disorders, most of which cause progressive scarring of lung tissue. The scarring associated with interstitial lung disease eventually affects your ability to breathe and get enough oxygen into your bloodstream.
Interstitial lung disease can be caused by long-term exposure to hazardous materials, such as asbestos. Some types of autoimmune diseases, such as rheumatoid arthritis, also can cause interstitial lung disease. In most cases, however, the causes remain unknown.
Once lung scarring occurs, it's generally irreversible. Medications can slow the damage of interstitial lung disease, but many people never regain full use of their lungs. Lung transplants are an option for some people who have interstitial lung disease.
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