Bumps on the penis may be caused by warts, herpes, folliculitis, etc., and can usually be recovered after treatment as prescribed by the doctor. 1. warts: a sexually transmitted disease caused by human papilloma virus infection, you can use imiquimod cream and other drugs for local application, but also through freezing, laser and other physical ways of treatment. 2. Herpes: it is a viral skin disease caused by human herpes virus. Herpes can be cured on its own, and the course of the disease can be shortened through the use of acyclovir ointment, glycerite lotion and other medications, and there is no need for surgical treatment, and the prognosis is better. 3. Folliculitis: it is an inflammatory disease mainly involving hair follicles. It can be treated by using iodophor to carry out antibacterial, using mupirocin, ketoconazole and other medicines, and if it is accompanied by abscess formation, it also needs to be treated by surgical incision and drainage. If you have a pimple on your penis, you should go to the hospital in time to receive examination and appropriate treatment, and please follow the doctor’s instructions for medication.