Genital warts typically appear as small, skin-colored bumps on or around the genitals or anus. They can be flat and smooth, raised with a rounded top, or clustered together in a rough, cauliflower-like shape. Some are so small and flat they’re nearly invisible to the naked eye, while others grow into noticeable masses over time.
Color, Texture, and Shape
Genital warts range in color from flesh-toned to pink to brown, depending on your skin tone. Their texture is typically rough or slightly grainy to the touch, which helps distinguish them from the smooth skin around them. In terms of shape, they fall into three general categories: flat growths that sit close to the skin’s surface, dome-shaped bumps that rise above it, or growths on a narrow stalk (like a tiny mushroom). When several warts cluster together, the combined mass takes on the bumpy, irregular look often compared to a cauliflower head.
Size varies widely. Early warts can be just a millimeter or two across, easily mistaken for a pimple or ingrown hair. Left alone, they can grow larger and multiply, especially in people with weakened immune systems. A single wart may stay small for months, or a cluster can spread across a wider area relatively quickly.
Where They Appear
In women, genital warts commonly show up on the vulva, the skin between the vagina and anus, and around the anal opening. They can also develop inside the vaginal canal or on the cervix, where they aren’t visible without a medical exam. Internal warts may cause no symptoms at all or occasionally lead to unusual discharge or bleeding during sex.
In men, warts most often appear on the shaft of the penis, the tip, the scrotum, or around the anus. They can also develop in the groin creases where moisture tends to collect. In both sexes, warts can appear in the throat or mouth after oral sexual contact, though this is less common.
Symptoms Beyond Appearance
Genital warts are often completely painless, and many people don’t realize they have them until they notice the bumps visually or a partner points them out. When symptoms do occur, they can include mild itching, a burning sensation, occasional bleeding (particularly during intercourse), or general discomfort in the area. Pain is uncommon unless a wart is in a location that gets frequent friction.
How They Differ From Similar-Looking Bumps
Several other conditions produce bumps in the genital area, and telling them apart matters.
- Skin tags are soft, smooth, and hang from a thin stalk. They’re the same color as surrounding skin and don’t have the rough, grainy texture of warts. They also don’t multiply or cluster.
- Molluscum contagiosum produces small, firm, dome-shaped bumps that are white or flesh-colored and often have a tiny dimple in the center. They may contain clear or white fluid. Unlike genital warts, molluscum bumps are smooth and shiny rather than rough.
- Pearly penile papules are tiny, uniform, dome-shaped bumps arranged in rows around the head of the penis. They’re a normal anatomical variation, not an infection. Their uniform size and orderly arrangement set them apart from the irregular shapes and random placement of warts.
- Fordyce spots are small, pale yellow or white dots that appear on the shaft of the penis or the labia. They’re oil glands visible through thin skin, completely harmless, and feel smooth rather than rough.
If a bump is pigmented (darker than the surrounding skin), bleeds on its own, feels hard and fixed to the tissue beneath it, or develops an open sore, those are signs it may not be a typical wart and warrants a closer look from a healthcare provider.
What Causes Them
Genital warts are caused by human papillomavirus, or HPV. More than 90% of cases come from HPV types 6 and 11, which are classified as low-risk strains. “Low-risk” means they cause warts but are not the strains linked to cancer. HPV spreads through skin-to-skin sexual contact, and you don’t need to have intercourse to transmit it.
How Long They Take to Appear
After exposure, warts don’t show up right away. The typical incubation period ranges from a few weeks to several months, and in some cases it can stretch even longer. This delay makes it difficult to pinpoint exactly when or from whom the virus was contracted. Some people carry HPV without ever developing visible warts at all. This is called latent or subclinical infection, where the virus is present but produces no bumps you can see. Subclinical infections may only be detected through a cervical screening or other clinical test.
Because of this long and unpredictable timeline, the appearance of warts doesn’t necessarily reflect recent sexual contact. The virus may have been acquired months or even longer before any visible sign develops.
Warts That Are Hard to See
Not all genital warts are obvious. Flat warts in particular can blend almost entirely into the surrounding skin, appearing as barely raised patches with only a slight texture change. These are easy to miss during self-examination. Warts inside the vaginal canal, on the cervix, or inside the anal canal are invisible without a clinical exam. If you’ve been diagnosed with HPV or a partner has visible warts, a healthcare provider can check areas you can’t examine yourself.