In adults, it usually occurs on the inner thighs, abdomen and genitals. Bumps are firm, smooth, domed with a central pit, and skin-colored or white. The overlying skin is transparent and thin. Bumps are usually 2mm to 3mm in diameter. A few may be as large as 10mm.
Bumps cause eye irritation if they are on the eyelids.
Bumps don't hurt or itch. This virus may be transmitted sexually. The incubation is 2 weeks to 6 months. Use of immunosuppressive drugs. If untreated, a few papules may increase to 20 to 50 lesions in several weeks.