Peeling lips may be caused by physiological reasons or pathological phenomena. Physiological phenomena are caused by overly dry skin and bad habits; pathological phenomena are mostly caused by chronic lipitis and desquamative lipitis. 1. Too dry skin: too dry skin will induce peeling lips, this phenomenon is mostly seen in winter and fall. When the skin of the lips is exposed to a dry environment for a long period of time, it can easily become dehydrated, leading to dryness and peeling. 2. Bad habits: Diet like to spicy, stimulating, dry food, or like to lick the lips, and this series of behavior will also lead to the lips too dry skin, and even show the phenomenon of peeling. 3. Chronic lipitis: the main symptoms of patients include dry lips, peeling, itching, tightness, pain. In more serious cases, it may even show symptoms such as lip ulcers or erosion. 4. Desquamative Lipitis: Desquamative Lipitis is a chronic superficial inflammation of the mucous membrane of the lips, the patient will show signs of dry lips, flaking, chapped, etc., mainly and sunlight exposure and contact with irritating substances have a direct relationship. When the lips peeling, exclude the physiological phenomenon caused by, should go to the local hospital in a timely manner for relevant examination, early detection of problems as soon as possible treatment, so as not to delay the condition.