Genital warts on men typically appear as small, skin-colored or pinkish bumps on the penis, scrotum, or surrounding skin. They can be flat and smooth, raised with a rough surface, or clustered together in a cauliflower-like shape. Most are just a few millimeters across, though some grow as large as 4 centimeters. Over 90% of cases are caused by two low-risk strains of HPV (types 6 and 11), meaning the strains that cause warts are not the same ones linked to cancer.
The Four Types of Genital Warts
Not all genital warts look the same. There are four recognized variants, and knowing which type you’re looking at can help you figure out whether a bump is actually a wart or something else entirely.
- Pointed, finger-like warts (condyloma acuminata): These are the most commonly recognized type. They’re skin-colored, soft, and tend to appear on moist areas of genital skin. They often cluster together into a shape that resembles a small cauliflower.
- Rough, raised papules: These look more like common warts you might see on a hand. They’re skin-colored with a bumpy, textured surface and tend to develop on drier skin, such as the shaft of the penis or the outer groin area.
- Flat-topped smooth papules: Sometimes called carpet warts, these are smooth, slightly raised bumps that can be pink, red, brown, or black depending on skin tone. They can appear on either moist or dry skin and are easier to overlook because they sit closer to the skin’s surface.
- Giant condyloma: These are large growths, sometimes reaching 4 centimeters, with a cauliflower-like surface that’s typically red or pink. They usually develop on dry genital skin and require a biopsy to rule out more serious changes in the tissue.
Color varies with skin tone. On lighter skin, warts tend to appear flesh-colored, pink, or reddish. On darker skin, they may look brown, dark brown, or black. The flat smooth type shows the most color variation, which is one reason it gets misidentified.
Where They Appear
In men, genital warts most commonly show up on the shaft of the penis, the head (glans), the foreskin in uncircumcised men, and the scrotum. They can also develop around the anus, even in men who haven’t had anal sex, because HPV spreads across the broader genital area through skin-to-skin contact. Less commonly, warts appear on the upper thighs or in the groin folds.
Warts in moist areas, like under the foreskin or around the anus, tend to be the soft, pointed type. Warts on drier skin, like the penile shaft or scrotum, are more likely to be the rough or flat varieties.
What They Feel Like
Many genital warts cause no symptoms at all beyond the visible bump. When symptoms do occur, the most common is itching or general discomfort in the area. Some men notice bleeding during sex, particularly if warts are located in areas that experience friction. The warts themselves are usually painless to the touch, though larger clusters can become irritated by clothing or movement.
How Long They Take to Appear
One of the trickiest things about genital warts is the timeline. After exposure to HPV, warts can take weeks, months, or even years to become visible. This long and unpredictable incubation period makes it nearly impossible to pinpoint exactly when or from whom you contracted the virus. About a third of men who develop genital warts get their first visible case after age 26, which means the infection may have been acquired much earlier in life.
Conditions That Look Similar
Several completely harmless conditions get mistaken for genital warts regularly. Knowing what they look like can save you a lot of unnecessary worry.
Pearly penile papules are small, white or skin-colored bumps that form a ring around the head of the penis, right along the corona. They’re uniform in size, evenly spaced, and completely benign. They’re a normal anatomical variation, not an infection, and they don’t spread or change over time. Genital warts, by contrast, tend to be irregular in shape, randomly placed, and may grow or multiply.
Angiokeratomas are small red or purple bumps that commonly appear on the scrotum. They’re dilated blood vessels near the skin’s surface and are harmless, though their dark color can be alarming. Unlike warts, they don’t have a rough or cauliflower-like texture.
Skin tags (acrochordons) are soft, floppy growths that hang from a thin stalk. They frequently appear in the groin folds or around the anus and can look convincingly like warts to an untrained eye. The key difference is that skin tags are smooth and soft, while warts tend to have a rougher, more textured surface.
How Genital Warts Are Diagnosed
Diagnosis is usually visual. A doctor or clinician examines the bumps and can typically identify genital warts based on their appearance and location. In some cases, a dilute vinegar solution is applied to the skin, which causes areas of HPV activity to turn white, making subtle or flat warts easier to spot.
A biopsy, where a small tissue sample is removed and examined under a microscope, is reserved for specific situations: when the bumps look unusual, when they keep coming back after treatment, or when there’s concern about precancerous changes. For the vast majority of straightforward cases, no biopsy is needed.
How Common They Are
About 2.8% of men in the United States report a history of genital warts, based on national survey data. That makes them less commonly reported in men than in women (6.3%), though this may partly reflect differences in detection rather than true infection rates, since HPV screening programs have historically focused on women. HPV itself is far more common than visible warts. Most people who contract the virus never develop warts at all, because the immune system clears the infection before growths appear.