Small bumps on the body of the penis may be caused by factors such as penile pearly papules, sebaceous cysts, glans phimosis, condyloma acuminatum and so on. 1. Penile pearly papules: a benign lesion, possibly related to poor hygiene, can make small bumps of skin color appear on the penile area without any self-conscious symptoms, and generally do not need special treatment. 2. Sebaceous cysts: prolonged inattention to penile hygiene may lead to blockage of the sebaceous ducts in the penile area, so that the secretion can not be discharged normally, which will make small bumps appear on the penis. 3. circumcision and glansitis: the presence of male circumcision and phimosis may induce circumcision and glansitis, stimulated by inflammatory substances, so that the penis localized pimples, accompanied by itching, redness, stinging and other symptoms. 4. Condyloma acuminatum: usually caused by human papillomavirus infection, will make the penile area appear cabbage pattern bumps, accompanied by mild itching and tingling, and has a certain degree of contagious. The pimples on the body of the penis may also be caused by other factors, if the symptoms persist and there are other abnormalities, it is recommended to go to the regular hospital in time to avoid adverse effects.