Urethral skinning can be caused by overstimulation, glans penis, vulvovaginitis, and allergic factors. 1. Overstimulation: For example, tight underwear and excessive friction with the urethral area can lead to skinning of the urethral area, accompanied by redness and other symptoms. 2.circumcision: men suffering from circumcision may lead to frequent inflammatory substances in the urethral area, which will make the urethra skinned, and may be accompanied by symptoms such as itching, tingling, redness and other symptoms of the glans. 3. Vulvovaginitis: women don’t pay attention to the hygiene of the lower body, may induce vulvovaginal inflammation, may invade the urethral opening area, which will lead to the urethral opening skinning, accompanied by vulvar itching, redness, odor and other symptoms. 4. Allergic factors: for example, the use of more irritating toiletries, may make the urethral region of the allergic reaction, will make the urethral skinning, accompanied by redness, itching and other abnormal manifestations. Urethral skinning may also be caused by other factors, if this symptom persists and there are other abnormalities, it is recommended to go to the regular hospital for timely examination and treatment to avoid adverse effects.