The filiform warts that appear on the skin of the scrotum are caused by human papilloma virus infection, and some of the patients can go away by themselves in about two years; if it affects the aesthetic appearance and the warts increase in size in a short period of time, it can be treated with physical therapy and medication. 1. Physical therapy: the main use of laser treatment and liquid nitrogen freezing treatment, the use of laser technology and liquid nitrogen freezing technology to make filiform warts necrosis, shedding, to achieve the purpose of treatment. 2. medication: apply imiquimod ointment and interferon locally under the guidance of the doctor.