Most bumps on the vulva or around the vaginal opening are harmless. Ingrown hairs, clogged pores, and small cysts account for the majority of cases, and many resolve on their own without treatment. That said, the location, appearance, and symptoms of the bump matter, because several very different conditions can look similar at first glance.
Ingrown Hairs and Folliculitis
The single most common cause of a bump in the genital area is an ingrown hair. Pubic hair is coarser and curlier than hair on the rest of your body, which makes it more likely to curl back into the skin instead of growing outward. Shaving, waxing, and plucking all increase the risk, especially if you shave against the direction of hair growth or use a dull razor. Tight clothing that creates friction against the skin can also contribute.
An ingrown hair typically looks like a small, pimple-like bump. It may be red or discolored and slightly tender. If bacteria get in, it can become infected, producing a pus-filled bump with more noticeable swelling and pain. This infected version is called folliculitis. In most cases, the bump clears up within a week or two if you leave it alone. Picking at it or trying to pop it pushes bacteria deeper into the skin and can spread infection to surrounding follicles.
Bartholin’s Cysts
The Bartholin’s glands sit on each side of the vaginal opening and produce fluid that helps with lubrication. When one of these glands gets blocked, fluid backs up and forms a cyst. A small Bartholin’s cyst may go completely unnoticed. As it grows, you’ll feel a soft, round lump on one side of the vaginal opening. It’s typically painless or only mildly tender.
The situation changes if the trapped fluid becomes infected, forming an abscess. An infected Bartholin’s cyst is painful, often warm to the touch, and can grow quickly over a day or two. Walking and sitting may become uncomfortable. Small, non-infected cysts often don’t need treatment. Soaking in a few inches of warm water (a sitz bath) several times a day can encourage drainage. An abscess, however, usually needs to be drained by a healthcare provider.
Genital Pimples and Clogged Pores
The vulva has oil glands and sweat glands, just like the rest of your skin. Those glands can clog, producing bumps that look and behave exactly like facial acne. They’re usually small, may have a white or yellowish head, and are mildly sore. Friction, sweat, and tight synthetic underwear make them more likely.
The same rule applies here as with ingrown hairs: don’t squeeze or pop them. Popping a pimple in the genital area is painful, unsanitary, and can spread bacteria to surrounding skin, increasing your chances of developing more bumps. A warm compress and breathable cotton underwear are the safest approach.
Genital Herpes
Herpes (HSV) produces a cluster of small blisters or sores rather than a single firm bump. The blisters often burst and leave red, open ulcers. Pain and a burning sensation are hallmarks. Some people also experience tingling or itching in the area before the blisters appear. Symptoms can develop within weeks of exposure to the virus, though some people carry HSV for months or years before their first outbreak.
If what you’re seeing is a group of painful, blister-like sores rather than a single round lump, herpes is worth considering. A healthcare provider can confirm the diagnosis with a swab test or blood test. Over 25% of genital ulcers don’t receive a confirmed lab diagnosis even after full evaluation, so testing early, while the sore is still active, gives the most accurate results.
Genital Warts (HPV)
Genital warts are caused by certain strains of human papillomavirus. They look quite different from herpes. Warts are typically skin-colored, can be raised or flat, and sometimes have a rough, cauliflower-like texture. They’re usually painless. You might notice a single wart or a small cluster. They can appear weeks to months after exposure to HPV, and because they don’t hurt, they’re sometimes mistaken for a skin tag or other harmless growth.
Molluscum Contagiosum
Molluscum produces small, round, skin-colored bumps with a distinctive dent or dot at the very center. In adults, it spreads primarily through sexual contact. The bumps are firm, painless, and can appear in clusters. They’re not dangerous but are contagious, and without treatment they can persist for months. The central dimple is the key feature that distinguishes molluscum from other conditions.
Vulvar Varicosities
During pregnancy, increased blood flow to the pelvis combined with slower blood return from the lower body can cause veins in the vulva to swell. These dilated veins may look bluish and feel bumpy or rope-like under the skin. Standing for long periods, exercise, and sex can make them worse. Vulvar varicosities are most common during pregnancy and typically improve after delivery. They’re not harmful, though they can feel heavy or uncomfortable.
Signs That Need Medical Attention
Most bumps are benign, but certain features warrant a closer look. A bump that doesn’t go away after two to three weeks, keeps growing, or comes back in the same spot should be evaluated. The same goes for any lump accompanied by fever, which can signal a spreading infection.
Vulvar cancer is rare, but its early signs overlap with common, harmless conditions. The CDC lists these warning signs: persistent itching, burning, or bleeding on the vulva that doesn’t resolve; color changes in the skin (appearing redder or whiter than normal for you); sores or lumps that don’t heal; and pelvic pain during urination or sex. Any of these symptoms lasting two weeks or longer, especially if they’re new or unusual for you, are worth bringing to a provider.
What You Can Do at Home
For a bump that looks like a pimple, ingrown hair, or small cyst, a few simple steps can help. Keep the area clean with warm water and mild, fragrance-free soap. Apply a warm compress for 10 to 15 minutes a few times a day to reduce swelling and encourage drainage. Wear loose, breathable cotton underwear to minimize friction and moisture buildup.
Avoid shaving or waxing the area until the bump heals. If you do shave regularly, switching to a sharp razor, shaving in the direction of hair growth, and moisturizing afterward can reduce future ingrown hairs. Most importantly, resist the urge to squeeze, pick, or pop any bump in the genital area. The risk of spreading bacteria and worsening the problem far outweighs the temporary satisfaction.
If the bump is painful enough to interfere with sitting or walking, is growing rapidly, has been present for more than a couple of weeks, or is accompanied by fever or unusual discharge, a healthcare provider can examine it and, if needed, take a swab or biopsy to determine exactly what’s going on.