Who’s who in IPF? June 28, 2018 The lowdown Idiopathic pulmonary fibrosis is a rare condition that causes progressive scarring of the lungs. Over time, the buildup of scar tissue (fibrosis) causes the lungs to become thick and hard, which ultimately results in the lungs losing their elasticity and an irreversible loss of the tissue’s ability to transfer oxygen to the bloodstream. Unfortunately, IPF is a chronic disease that sees lung function progressively declining over time before failing completely. Back to blogs written by GKA