Interstitial Lung Disease (ILD) refers to a group of disorders that cause inflammation and scarring of the lung tissue, specifically the interstitium, which is the space around the air sacs. This scarring can lead to difficulty in breathing and reduced oxygen supply to the body. Common causes include long-term exposure to harmful substances, autoimmune diseases, and certain medications. Symptoms of ILD often include a persistent dry cough, shortness of breath, and fatigue. Diagnosis typically involves imaging tests like chest X-rays or CT scans, along with lung function tests. Treatment options may include medications, oxygen therapy, and pulmonary rehabilitation to help manage symptoms and improve quality of life.