Men’s pubic skin peeling, may be caused by physiological factors, such as local moisture; may also be caused by pathological factors, such as the foreskin glans, contact dermatitis or riboflavin deficiency, etc., need to go to the hospital to clarify the cause of the disease. 1. Physiological factors: due to obesity, underwear material is not breathable or sedentary, etc., caused by localized moisture on the vulva, or long-term bed-ridden men using diapers for too long is also prone to appear. Due to local moist heat caused by impregnation, drying can produce peeling. 2. Pathological factors: (1) foreskin glans dermatitis: often caused by pathogen infection, local stimulation, etc., to pathogen infection is the most common, most is through is contact infection, also some people are infected by their own ringworm or tinea pedis to the vulva localization caused by obesity, do not pay attention to hygiene and so on are related. (2) contact dermatitis: generally contact with underwear or belts and other items caused by local allergic reactions, different people are allergic to different things, long-term allergic to the best line of allergens to determine the allergens. (3) Riboflavin deficiency: also known as vitamin B2 deficiency, the body lacks vitamin B2 is prone to scrotal inflammation, keratitis, etc., manifested as scrotal skin erythema, roughness and flakiness, corners of the mouth vesiculation, chapped, tongue redness, pimples and so on. Severe picky eaters, long-term eating over cooking improper food is prone to appear. It is recommended that male patients with peeling skin on the pubic area go to a regular hospital in time, and standardize the treatment under the guidance of doctors after a clear diagnosis.