There are more than 200 types of PF.
Pulmonary fibrosis is a term which covers approximately 200 different types of lung diseases that all act and look alike. Pulmonary fibrosis can often be the result of another health condition such as scleroderma or due to long-term exposure to lung irritants such as chemicals, inorganic dust or cigarette smoke. If there is no known cause for the disease, it’s called idiopathic pulmonary fibrosis (IPF).