Tumors on the penis may be the result of diseases such as condyloma acuminatum and penile cancer. 1. Condyloma acuminatum: usually due to HPV infection, and also associated with having multiple sexual partners, unsafe sex, having high-risk sexual partners, immune system abnormalities and other factors. Most of the infected people are asymptomatic, some patients can be infected 2 to 3 months after the external genitalia and anus around the skin appeared superfluous organisms, usually men occur in the glans, the coronal groove, the penis, perineum, urethral opening and circumcision and other parts of the foreskin, can be manifested as a penis on the growth of the tumor. And some patients may also have foreign body sensation, itching, pain, discomfort in sexual intercourse and so on. 2. Penile cancer: the cause of the disease is still unclear, and it is mostly considered to be related to HPV infection, bad hygiene habits, long foreskin and other factors. Generally, early lesions are not easy to be found, only manifested as thickening and flaking of penis head or foreskin. With the development of the disease, can be touched within the foreskin nodules or lumps, will gradually increase, and even penetrate the foreskin, so some patients can also be manifested as a tumor on the penis. It is recommended that patients find a tumor on the penis, timely medical treatment, and after the cause of the disease is clear, follow the doctor’s instructions for treatment.