A bump on the labia is extremely common and, in most cases, completely harmless. The most likely causes are clogged glands, ingrown hairs, or normal anatomical variations that have always been there but you’re only now noticing. That said, some bumps do warrant a closer look, so understanding what different types look and feel like can help you figure out what you’re dealing with.
Ingrown Hairs and Folliculitis
If you shave, wax, or trim the hair around your labia, an ingrown hair is one of the most common explanations for a sudden bump. These look like a sore, tender, or itchy spot on the skin, sometimes with a visible hair trapped underneath. When the follicle gets infected, it can fill with pus and look similar to a whitehead or a pimple. This is called folliculitis, and it often resolves on its own within a week or so.
Warm compresses can help draw out the hair and ease discomfort. Avoid squeezing or picking at the bump, which can push bacteria deeper into the skin and make the infection worse. If the area becomes hot, very swollen, or starts spreading redness outward, that can signal a deeper skin infection called cellulitis, which needs medical treatment.
Bartholin’s Cysts
The Bartholin glands sit at the lower part of the vaginal opening, roughly at the 4 o’clock and 8 o’clock positions. These tiny glands produce moisture, but when their ducts get blocked, fluid backs up and forms a cyst. Bartholin’s cysts are typically 2 to 4 centimeters in diameter and feel like a round, firm lump under the skin on one side of the vaginal opening.
Small ones are often painless and you might only notice them by touch. Larger ones can cause discomfort when sitting, walking, or during sex. The real problem starts if the cyst becomes infected and turns into an abscess. At that point, the area becomes very tender, red, swollen, and may drain pus. Warm sitz baths (about 104°F for 15 to 20 minutes, three to four times a day) can sometimes encourage a cyst to drain on its own. An abscess that doesn’t resolve typically needs to be drained by a healthcare provider.
Epidermal Cysts
Epidermal inclusion cysts are another frequent cause of labia bumps. These are firm, round, yellowish-white bumps most often found on the outer lips (labia majora). They form when skin cells get trapped beneath the surface and range from a few millimeters to several centimeters. They’re benign and usually painless unless they become inflamed or infected. Many people have them for years without any issues.
Normal Anatomy You Might Not Recognize
Some bumps aren’t bumps at all. They’re normal parts of your anatomy.
Fordyce spots are tiny (1 to 3 millimeters) white, yellowish, or skin-colored raised dots that appear in clusters. They’re enlarged oil glands, and 70% to 80% of adults have them somewhere on their body, including the genital area. They’re not an infection, not contagious, and don’t need treatment.
Vestibular papillomatosis looks like small, soft, finger-like projections along the inner labia minora. They appear in a symmetrical pattern and are a completely benign anatomical variant. They’re sometimes mistaken for genital warts, but unlike warts, each projection has its own separate base, and they’re softer and evenly distributed rather than randomly clustered.
Vulvar anatomy also varies widely from person to person. A study of 50 healthy women found labia minora length ranged from 2 to 10 centimeters, and texture ranged from smooth to markedly ridged. What feels like an unusual bump may simply be your normal anatomy.
Sexually Transmitted Infections
Two STIs commonly cause bumps in the genital area: HPV (genital warts) and herpes.
Genital warts from HPV are skin-colored, raised or flat, and often have a rough, cauliflower-like texture. They’re usually painless. Herpes looks different: it causes clusters of small blisters that burst and leave red, open sores. Herpes outbreaks are often painful and may be preceded by tingling or itching in the area. Some people also get flu-like symptoms during a first outbreak, including fever and chills.
Molluscum contagiosum is a viral infection that causes small, firm, raised bumps with a characteristic dimple or dip in the center. It spreads through skin-to-skin contact, including sexual contact, and typically clears on its own over several months.
If your bump looks like any of these descriptions, getting tested gives you a clear answer and access to treatment options.
Less Common Causes
Several other benign growths can appear on the labia. Seborrheic keratoses look like raised, well-defined, “stuck-on” patches that may appear waxy or oily. They have no potential to become cancerous. Hidradenoma papilliferum is a firm, smooth, solitary nodule (0.5 to 2 cm) that appears on the labia majora or minora and is entirely benign. Vestibular gland cysts are soft, smooth, round, and sometimes translucent because they’re filled with clear mucus. All of these are harmless, though a healthcare provider can confirm the diagnosis if you’re unsure.
When a Bump Needs Medical Attention
Most labia bumps are benign, but a small number are not. Vulvar cancer can present as a lump, sore, or ulcer that doesn’t go away. Other warning signs include persistent itching or burning that won’t resolve, unusual changes in skin color (areas that look redder or whiter than your normal skin), bleeding from the vulva, or pain during urination or sex.
Doctors consider a biopsy when a vulvar lesion is growing quickly, has been an open sore for more than a month, bleeds, feels unusually hard, or hasn’t responded to treatment. Any suspicious lesion should be evaluated to rule out something more serious. Vulvar cancer is uncommon, especially in younger women, but catching it early makes a significant difference in outcomes.
What You Can Do at Home
For a new bump that seems like it could be an ingrown hair, clogged gland, or small cyst, a few simple steps can help. Warm sitz baths are the most consistently recommended approach: fill a basin or shallow tub with warm water (around 104°F), sit in it for 15 to 20 minutes, and repeat up to three or four times a day. This can reduce swelling, ease pain, and encourage cysts to drain naturally.
Wear breathable cotton underwear and avoid tight clothing that creates friction against the area. Don’t try to pop, squeeze, or lance the bump yourself, as this introduces bacteria and can turn a minor issue into an infection. If the bump hasn’t improved after a week or two, is getting larger, or is becoming more painful, that’s a good reason to have it looked at.