Diaper rash is a term used to describe irritation or inflammation of the skin that occurs in the area covered by a diaper. It can be caused by various factors, including prolonged exposure to moisture and friction from the diaper, as well as contact with harsh chemicals found in some disposable diapers. Diaper rash is most common in infants and young children who are not yet potty trained, but it can also affect adults who wear diapers for medical reasons or during periods of convalescence. Symptoms may include redness, irritation, soreness, and small bumps or blisters on the skin. Treatment typically involves keeping the area clean and dry, applying a barrier cream or ointment to protect the skin, and using medicated diaper rash creams as needed.