When men have itchy penile epidermis symptoms, there are several reasons: first, consider the male penile epidermis allergy symptoms, such as not changing clothes in time, the penis contact with contaminated clothing caused by. Second, the organism suffers from circumcision, if the penis is not cleaned in time is susceptible to fungal or bacterial infection, itchy skin symptoms, in serious cases causing penile redness, vesicle-like changes, accompanied by local tissue swelling, urination abnormalities, etc.. Third, clean sexual contact leads to the transmission of disease, by gonococcus, chlamydia, mycoplasma infection appears itchy skin and urinary tract irritation symptoms such as urinary frequency, urinary urgency, urinary pain. Fourth, penile skin itching consider whether the patient has recently eaten allergic food or drugs causing local allergies, immediately go to the hospital, under the guidance of the doctor symptomatic treatment.