The primary symptom of the human papillomavirus, or HPV, in men is genital warts, according to WebMD. One or more small bumps appear in the penis or anus region, the CDC states. However, most men with HPV show no symptoms.
Genital warts vary in size, appearance and duration. Some are flat, while others are raised, reports the CDC. In certain cases, the warts are cauliflower-shaped. Warts remain unchanged, disappear or spread. Typically, genital warts are diagnosed through observation. Even after treatment, these warts return in some men.
Genital warts are typically treated with prescription topical medications, Healthline says. Warts that don't respond are sometimes removed by burning, freezing, laser treatment or surgical excision, but once the virus is in the bloodstream, it's not curable. HPV is transmittable to others. Condoms help prevent its spread but don't guarantee protection, advises the CDC.
In some men, HPV leads to cancer of the penis, anus or back of the throat, warns the CDC. A vaccination called Gardasil is available that protects men against genital warts and some cancers. Typically, three injections are given over a six-month time period when boys are 11 or 12. Young men who were not vaccinated as children are eligible for the injections until age 21. Non-vaccinated gay and bisexual men have until 26 to receive Gardasil, as do males who have compromised immune systems.