The level of disability that a person experiences depends on the amount of scarring of the tissue. This is because the air sacs, as well as the lung tissue between and surrounding the air sacs, and the lung capillaries, are destroyed by the formation of scar tissue. If this happens, your doctor may prescribe oxygen to help you breathe easier. Known Causes of Pulmonary Fibrosis Several causes of pulmonary fibrosis are known. Some diseases include asbestosis and silicosis.
Tuberculosis is one example.
Drugs Certain medicines may have the undesirable side effect of causing pulmonary fibrosis. Check with your doctor about the medicines you are taking and ask about any possible side effects. This is not as common as the other causes listed. These theories are still being researched. There is also a familial form of the disease, known as familial idiopathic pulmonary fibrosis.