Because of the multiple causes, targeted prevention is difficult. You should generally minimize the risk of lung damage. This includes waiver of tobacco and protective measures against harmful substances (such as breathing filters). No prevention is possible for idiopathic pulmonary fibrosis, since the cause remains unknown.
The prognosis is difficult to predict, since many factors are responsible for the progression of the disease. Once the connective tissue developed, it can no longer be removed. The idiopathic pulmonary fibrosis often shows an aggressive course with a significant shortening of life expectancy. Drugs can very often only slow down the progress in a limited way. A lung transplant may be able to prolong life under certain circumstances. If the lung fibrosis is caused by pollution, the disease often improves significantly after contact with the triggers is avoided. Generally medications also work better in this case.