There are many reasons for total penile ulceration, such as genital herpes, glans penis, syphilis, eczema and other causes. 1. Genital herpes: Herpes simplex virus infection causes genital herpes, which may form localized rashes, blisters, and ulcers, leading to total penile ulceration. 2. Gonorrhea: Gonorrhea caused by bacteria, trichomonas, candida and other infections, inflammatory stimulation can also cause symptoms of total penile ulceration. 3. Syphilis: Sexually transmitted diseases caused by syphilis spirochete infection, the emergence of hard chancre, flat warts, can also cause symptoms of penile ulceration. 4. Eczema: internal and external stimulation of a variety of factors caused by local skin inflammatory reaction, acute eczema can also cause pimples, papules, blisters, etc., can also lead to total penile ulceration. Penile swelling ulcers may have other reasons, need to go to the hospital in time to check, clear cause of treatment as prescribed by the doctor.