If you are sure that the acne on the penis, it may be glans circumcision, folliculitis; if there is high-risk sexual behavior, you should also be alert to warts and other diseases. It is recommended to consult the hospital male department, venereal disease department, under the guidance of the doctor with medication. 1. glans, foreskin inflammation: usually do not pay attention to personal hygiene, foreskin scale repeated stimulation, may lead to repeated inflammation of the foreskin, glans. The stimulation of pathogenic microorganisms and secretions leads to the local appearance of small bumps. It is recommended to pay attention to hygiene, reduce stimulation, give iodine volts, erythromycin ointment coating treatment. 2. Folliculitis: there are many hair follicles in the penis of boys, often scratching and squeezing lead to skin breakage, bacterial invasion of hair follicles lead to hair follicle inflammation, leading to penis pimples. It is recommended to pay attention to cleaning, follow the doctor’s instructions external fusidic acid, mupirocin ointment coated, if necessary, oral levofloxacin, norfloxacin anti-infection treatment. 3. acromegaly: acromegaly is caused by human papilloma virus infection, easy to occur in a period of time after unclean sex. Wart-like lesions may appear on the skin and mucous membranes at the site of sexual contact. They can be treated by laser and freezing in conjunction with a doctor’s advice. If the warts are large, they can be treated by surgical removal. To summarize, penile acne should be considered to be related to a variety of factors, and it is recommended to consult a doctor in time to clarify the cause to avoid further aggravation of the condition.