Idiopathic pulmonary fibrosis (IPF) is a progressive lung disease characterized by scarring (fibrosis) of the lungs. The fibrosis causes the lung tissue to thicken and stiffen over time, making it difficult to breathe. While the cause of IPF is unknown, it usually affects older adults and has no cure. In this article, we will discuss what is known about IPF, including causes, risk factors, diagnosis, treatment options, and research efforts.
