Idiopathic interstitial fibrosis of the lungs Idiopathic pulmonary fibrosis (IPF) is a serious chronic disease that affects the tissue surrounding the air sacs, or alveoli, in the lungs. This condition develops when that lung tissue becomes thick and stiff for unknown reasons. Over time, these changes can cause permanent scarring in the lungs, called fibrosis, that makes it progressively more difficult to breathe. https://t.me/joinchat/AAAAAEIMp_P_-52SlidzHg