Penile peeling may be excessive cleaning, environmental dryness and other physiological factors, or consider contact dermatitis, dry eczema and other diseases. 1. Physiological factors: if long-term over-cleaning of the penile skin, or in a dry environment, may lead to localized skin dryness, the introduction of the penis, is a normal phenomenon. 2. Contact dermatitis: contact dermatitis may be caused by contact with exogenous substances that irritate the skin or trigger an allergic reaction. Patients may appear in the penile area of erythema, papule edema, scaling, flaking symptoms, manifested as penile peeling. 3. Dry eczema: Dry eczema may be caused by excessive water loss on the surface of the skin, reduction of oil, poor perspiration, too many baths, excessive friction and other factors. Patients may have dry skin, vesicles, crusts, scales and other symptoms, and some patients may manifest as penile peeling. There are many causes of penile peeling, and it is recommended that patients go to regular hospitals for relevant examinations, so as to clarify the cause of the disease.