Genital Pimples: What Causes Them and How to Tell if It's an STD

Getting a pimple is annoying enough when it's on your face. Getting one on your genitals? That'll send you down a panicked Google search rabbit hole. It's an unsettling thing to find, but a bump on or near your vulva is more often a clogged pore or ingrown hair than anything else. That said, a handful of sexually transmitted infections (STIs) and diseases (STDs), including herpes, HPV, and syphilis, can also cause pimple-like growths, and it helps to know what sets them apart.

Actual pimples are usually caused by clogged pores or inflamed hair follicles and are often found on the face, back, or shoulders. They typically don’t come with other symptoms like pain, itching, or unusual discharge. On the other hand, bumps caused by STIs, like herpes sores or genital warts, are often accompanied by pain, itching, or changes in appearance, and they tend to appear near the vulva, vagina, and anus. 

Keep reading to learn which STDs can cause pimples, the difference between STD “pimples” and normal ones, plus other signs and symptoms to look out for. 

Key takeaways

• Most genital pimples are clogged pores, ingrown hairs, or irritation from shaving, sweat, or tight clothing, not a sign of an STD.
• Signs worth paying attention to: painless sores, clusters of small blisters, bumps that keep growing or won't heal, or anything accompanied by discharge, odor, or fever.
• If a bump is painful, spreading, sticking around past a couple of weeks, or shows up after a new partner, get tested rather than guess.

What causes genital pimples?

The skin on your vulva isn't all that different from the skin anywhere else on your body, so the same everyday causes of pimples on your face or back can show up there, too. Pores and hair follicles get clogged with oil, sweat, and dead skin cells, bacteria move in, and the result is a small, tender bump. Because the vulva also deals with friction, moisture, and pubic hair removal that most other skin doesn't, a few causes show up especially often in this area.

Clogged pores and hormonal breakouts

Just like facial acne, genital pimples can form when the skin's oil glands become blocked by sebum and dead skin cells. Hormonal shifts, whether from your cycle, puberty, or conditions like polyendocrine metabolic ovarian syndrome (PMOS), can increase oil production and make breakouts more likely in the same way they do on the face or back.

Ingrown hairs and folliculitis from shaving or waxing

Removing pubic hair, whether by shaving, waxing, or plucking, can irritate hair follicles or cause a hair to curl back into the skin instead of growing out. Both result in small, red, sometimes pus-filled bumps that can look a lot like acne. This is one of the most common causes of genital bumps, especially in the day or two after hair removal.

Contact dermatitis from products, detergents, and pads

The vulva is sensitive to fragrances, dyes, and chemicals in soaps, laundry detergent, wipes, and even pads or liners. When skin reacts to one of these irritants, it can show up as small red bumps, itching, or a rash that's sometimes mistaken for a pimple or an infection. Switching to unscented, dye-free products is usually enough to clear it up.

Sweat, friction, and tight clothing

Sweat trapped against the skin by tight underwear, leggings, or workout clothes can clog pores and irritate hair follicles, leading to small bumps in the groin and vulvar area. This is especially common after exercise or in warm weather, and tends to improve with looser, breathable fabric and changing out of damp clothing promptly.

Where the bump is: Vulva, labia, and clitoral area

Where exactly a bump shows up can be a useful clue, though it's not a substitute for getting it checked. Most people who describe a "pimple on the vagina" are actually describing a bump on the vulva, since the vagina itself is the internal canal and isn't usually where a visible pimple would appear.

On the labia majora, the outer, hair-bearing lips, ingrown hairs and folliculitis are the most common cause, simply because that's where hair removal and friction happen most. Bumps here that come and go with your shaving or waxing schedule are usually nothing to worry about.

On the labia minora and around the vaginal opening, the skin is thinner, moist, and mucosal, more like the inside of your cheek than the skin on your face. Bumps here are more likely to be contact dermatitis from a product or, less commonly, an STI-related sore or blister, since this is also a common site for herpes outbreaks and genital warts.

A bump on or near the clitoral hood is less common for an ordinary pimple, since there's little hair growth to cause ingrown hairs in that area. It's more often linked to product irritation, friction, or, in some cases, a cyst. Because the area is small and sensitive, it's worth getting any persistent bump here checked by a provider rather than waiting it out.

What genital pimples look like vs an STD bump

Appearance alone can't tell you for certain what a bump is, but a few visual differences are worth knowing.

An ordinary pimple looks much like one on your face: a single raised red bump, sometimes with a white or yellow center, that typically resolves within a few days to a week. An ingrown hair looks similar, often with a visible embedded hair or a small dark dot at the center, and usually shows up in the days after shaving or waxing.

A herpes outbreak looks different. It causes small, fluid-filled blisters that tend to cluster together on a patch of red, irritated skin. These are usually painful or tender and break open within a few days, leaving shallow sores that crust over as they heal. 

Genital warts, caused by HPV, look like flesh-colored or slightly darker, painless growths that can be flat, raised, or textured like cauliflower, and often appear in small clusters rather than alone. Molluscum contagiosum bumps are firm, smooth, and dome-shaped, usually with a small dimple or indent in the center, and are typically painless, though they can become itchy or irritated.

What STD causes pimples?

More than one STI can cause unusual skin growths on the vulva and vagina. Here's a quick reminder: STIs can be passed on during any type of sexual activity, including vaginal, anal, and even oral sex. In many cases, skin-to-skin contact is enough to spread an infection, so although they won't entirely prevent an STI, using a barrier method (condoms or dental dams) can reduce your risk.

It's also worth mentioning that many STDs cause very mild symptoms or no symptoms at all. An STI test is the only way to know for sure whether you have one. Below are some of the most common culprits.

Genital warts

There are over 200 types of human papillomavirus (HPV) that can infect the skin and mucous membranes. Two of these types are responsible for causing genital warts.

Genital warts can appear in various forms, such as pink or flesh-colored warts that are raised, flat, or even shaped like cauliflower.

Here's an important thing to remember: you don't necessarily need to have penetrative sex to get HPV. Sexual contact is enough to spread the virus, which is why it's the most common STI in the U.S., and most of us will come into contact with it at some point in our lives. Around 80% of women will have HPV by the time they're 50.

While there's no cure for the virus, your healthcare provider might recommend removing warts by freezing them off, applying prescription topical medication, or removing them surgically.

Genital warts can clear up on their own if your immune system clears up the virus, but they can also grow larger or multiply. It's important to treat them to reduce the risk of spreading the infection, as it's more contagious during active outbreaks.

Vaccines can also help prevent HPV. The Centers for Disease Control and Prevention (CDC) recommends HPV vaccines for people aged nine to 26. The vaccine can also reduce your risk of cervical cancer, which is linked to certain strains of the virus. In 2018, the Food and Drug Administration (FDA) approved the HPV vaccine for women up to the age of 45, so your healthcare provider may recommend getting vaccinated even if you're over 26.

Syphilis

Syphilis symptoms can be tricky to spot at first and might be mistaken for pimples or a rash.

The first sign of syphilis is a round genital sore called a chancre, which shows up on the genitals or anus. Syphilis sores can look like ingrown hair, pimples, or harmless bumps, and because they are often painless, they can go unnoticed, especially if you're not checking your vulva.

A syphilis infection is highly contagious and can easily be passed on through skin-to-skin contact during sex, so it's really important to see your healthcare provider.

Since syphilis symptoms can be hard to spot and can come and go over time, it's best to get tested to confirm if you have it. Even if the symptoms come and go, the infection doesn't disappear without antibiotic treatment.

Genital herpes

Genital herpes is a common sexually transmitted infection caused by HSV-2. You can also get the HSV-1 virus (the one that causes cold sores) in your genital area, too. Herpes is highly contagious and can easily spread through skin-to-skin contact, especially during sex.

The most common symptoms of genital herpes are itchy or painful blisters on the vulva, anus, or thighs. They can also appear in the vagina and cervix, which means many people don't know they have herpes because the outbreak isn't always visible. The first outbreak usually lasts about 2 to 4 weeks. Genital herpes can be quite painful, and outbreaks may be accompanied by other symptoms, including fever, body aches, flu-like symptoms, and painful urination.

Unfortunately, there's no cure for herpes, but antiviral drugs can help manage and reduce the duration and discomfort of outbreaks, and also help prevent future outbreaks.

Granuloma inguinale

Granuloma inguinale (or donovanosis) is a very rare sexually transmitted infection caused by the bacteria Klebsiella granulomatis.

Usually, granuloma inguinale appears as a painless, red lump on or near the genitals, initially resembling a pimple or a skin lump. You might not notice it at first, but it can grow and eventually break down, forming a sore.

If left untreated, granuloma inguinale can lead to chronic inflammation and permanent scarring of the genitals, but the good news is that it can be treated with antibiotics.

Molluscum contagiosum

Molluscum contagiosum is a skin infection that causes small, firm, fleshy bumps. They're usually painless, but they can be itchy, sore, or swollen at times.

You can get it through touching infected skin, including during sex, but you can also get it in other non-sexual ways like sharing clothes and towels, so it's not technically a sexually transmitted infection because you don't need to be sexually active to get it. In fact, it is a common infection in children between the ages of 1 and 10.

The good news is that it's not dangerous. Treatments such as creams, oral medications, and physical removal can help, but it often goes away on its own without treatment.

How to treat a genital pimple at home

If you're confident you're dealing with an ordinary pimple, an ingrown hair, or a mild irritation rather than an STD, the best approach is usually to keep the area clean and leave it alone. Wash gently with a fragrance-free cleanser and warm water, and let your body take care of the rest. Most cases clear up on their own within a few days to a week.

It's tempting to pop or squeeze a pimple, but doing so often makes the inflammation worse and increases the risk of infection, so it's best to just let it be. Loose, breathable cotton underwear can help reduce friction while it heals, and if a scented product like a wash, detergent, or pad seems to be the trigger, switching to a fragrance-free alternative usually clears up irritation within a few days.

Home care is only appropriate when you're confident an STD isn't in the picture. If the bump is painful, filled with fluid, spreading, doesn't improve after a week or two, or shows up alongside other symptoms like discharge or fever, stop trying to treat it at home and see a healthcare provider instead.

How long do STD pimples last?

It depends on the STD and whether you treat it or not. For example, genital warts can take a few months to go away with treatment, while a herpes outbreak might last a few weeks. Herpes sores typically start as small, painful pimples or blisters that eventually burst and scab over. A first outbreak can last 2 to 4 weeks, but later outbreaks are usually shorter (around a week or so), especially if you start antiviral medication early.

Syphilis can also cause pimple-like sores called chancres, which are usually painless. These can last 3 to 6 weeks and will heal on their own, but the infection can persist and progress if left untreated.

Other STIs, such as molluscum contagiosum, can cause small, raised bumps that resemble pimples. These might last for several weeks or even months, depending on your immune system and whether you get treatment.

If you notice pimple-like bumps or sores on or near your genitals, it's important to get tested. Some STI-related bumps can be mistaken for ingrown hairs or acne, so a proper diagnosis is key. With the right treatment, many STD-related skin symptoms clear up faster and reduce the risk of spreading the infection.

Are pimples on the buttocks or thighs related to STDs?

Pimples on the buttocks or thighs can be related to STDs, but most of the time, these bumps are caused by more everyday things like clogged hair follicles (that's called folliculitis), sweat, friction, or even irritation from tight clothing.

That being said, some STDs can certainly cause bumps or sores in those areas, especially if there's been skin-to-skin contact during sex. For instance, herpes can lead to uncomfortable blisters or sores not only on the genitals, but also on the buttocks, thighs, or around the anus. Another example is syphilis, which may cause painless sores (chancres) depending on where contact happened. Molluscum contagiosum can also cause small, flesh-colored or white bumps that might appear there.

If you find that the bumps are itchy, painful, spreading, or sticking around for more than a couple of weeks, or if they popped up after getting a new sexual partner, see a healthcare provider. They can help determine whether it's harmless or requires treatment.

How to prevent genital pimples

Reducing your risk of both everyday genital pimples and STD-related bumps comes down to a mix of general skin care and sexual health habits:

• Practice gentle hair removal: Use a clean, sharp razor, shave in the direction of hair growth, and exfoliate lightly between removals to help prevent ingrown hairs and folliculitis.
• Choose unscented products: Fragrance-free soap, detergent, and pads or liners reduce the risk of contact dermatitis in sensitive areas.
• Keep the area dry and breathable: Change out of sweaty or damp clothing promptly, and opt for cotton underwear to reduce friction and trapped moisture.
• Use protection: Condoms and dental dams don't eliminate the risk, but they significantly reduce it by creating a barrier against skin-to-skin contact and bodily fluids, two of the main ways STIs spread.
• Get tested regularly: Some STIs don't show symptoms right away (or ever), so regular testing is key, especially if you have new or multiple partners. Catching an infection early can help you treat it before symptoms like sores or pimples show up.
• Avoid skin-to-skin contact during outbreaks: Herpes, for example, spreads most easily during an active outbreak. If you or your partner has herpes, avoid sexual contact when sores are present, even if they're not on the genitals.
• Communicate with partners: Honest conversations about STI status, testing history, and protection help everyone stay informed and safe.

When to see a healthcare provider

See your healthcare provider if you notice a bump or lump near your vulva or vagina. They can examine it and run tests to figure out whether it's caused by an STD or something else. They'll also advise on treatment and the next steps if needed.

You should see your healthcare provider, especially if you have bumps or pimples on your genitals along with other symptoms, including:

• Abnormal vaginal discharge
• A strong, foul, or fishy vaginal odor
• Pelvic pain
• Bleeding between periods
• Itching and redness near the genital area
• Pain while peeing and having sex
• Swollen lymph nodes
• Fever. 

FAQs about genital pimples

What STD causes pimples?

Genital warts, syphilis, genital herpes, granuloma inguinale, and molluscum contagiosum are some of the sexually transmitted infections that can cause bumps and blisters on the genitals. Not all genital bumps are a sign of infection, though. Contact dermatitis, folliculitis, and everyday pimples can also appear on the vulvar skin.

How do you tell if a spot is an STD?

Telling whether a spot is from an STD can be tricky because STI-related bumps can look a lot like regular pimples, ingrown hairs, or skin irritation. But there are a few signs that might raise red flags. If the spot is painful, filled with clear fluid or pus, turns into an open sore, or shows up alongside other symptoms like itching, burning, or unusual discharge, it could be linked to an STD like herpes, syphilis, or molluscum contagiosum. Herpes sores often start as small, tender bumps or blisters that break open and crust over. Syphilis usually causes a single, painless sore. Molluscum contagiosum looks more like small, shiny, skin-colored bumps with a dimple in the center. If the spot doesn't go away within a week or two, keeps coming back, or appears after unprotected sex or a new sexual partner, it's smart to get checked out. Ultimately, the only way to know for sure is to see a healthcare provider. They can examine the spot, possibly test it, and tell you exactly what's going on. Self-diagnosing can be confusing and stressful, so getting answers from a pro is always the best move.

Can chlamydia cause pimple-like bumps?

Chlamydia itself doesn't typically cause pimple-like bumps, but it can lead to symptoms that might make you think something is off with your skin. Chlamydia often goes unnoticed because many people don't experience symptoms, but when they do appear, it's usually in the form of unusual discharge, a burning sensation when you pee, and pelvic discomfort rather than bumps.

What are skin signs of STDs?

Skin signs of STDs can vary widely depending on the infection, but several common symptoms may appear on your skin. If you're noticing unusual spots, bumps, or sores, it's important to get tested, especially if you've had unprotected sex or multiple partners. Herpes typically shows up as blisters or sores around the genitals, anus, thighs, or buttocks. Syphilis starts with a painless sore (chancre) that can heal but remains contagious; later stages may lead to rashes. Warts from HPV appear as small, flesh-colored or grayish bumps that may cluster together. Molluscum contagiosum causes small flesh-colored bumps with a dimple in the center, which can spread through sexual or non-sexual contact. If you notice any unusual skin changes, especially with pain, discharge, or itching, consult a healthcare provider for evaluation and treatment.

How do I get rid of pimples on my genital area?

For an ordinary pimple or ingrown hair, the best approach is usually to keep the area clean and otherwise leave it alone, letting your body take care of the rest. Avoid picking or squeezing, as this often worsens inflammation and increases the risk of infection. Switching to unscented laundry and hygiene products and wearing loose, breathable underwear can help prevent new ones from forming. If the bump is painful, unusual-looking, or not improving after a week or two, see a healthcare provider rather than continuing to treat it at home.

Is it a pimple or an ingrown hair?

The two can look nearly identical, and the distinction usually comes down to timing and location. An ingrown hair typically shows up in the days after shaving, waxing, or plucking, and you can sometimes see a trapped hair or a small dark dot at the center of the bump. An ordinary pimple isn't tied to hair removal and can appear anywhere oil glands are present, regardless of your hair removal schedule. Either way, both usually resolve within a few days to a week with basic care, and neither should be painful enough to interfere with daily activities; if it is, that's worth getting checked.

Is it HPV or a pimple?

A pimple is typically a single, inflamed bump that comes to a head and resolves within days. A genital wart caused by HPV is usually painless, flesh-colored, and can be flat, raised, or have a rough, cauliflower-like texture, often appearing in small clusters rather than alone. Warts also tend to stick around or slowly grow rather than resolving the way a pimple does. If a bump doesn't clear up within a week or two, has an unusual texture, or is one of several appearing together, it's worth having a provider take a look.

Are vaginal pimples normal?

Bumps on the vulva (what most people mean by "vaginal pimples," since the vagina itself is internal) are common and usually harmless, most often caused by clogged pores, ingrown hairs, sweat, or product irritation, the same things that cause pimples anywhere else on the body. They become worth a closer look when they're painful, filled with fluid, growing, clustered, or don't resolve within a week or two, since those patterns are more consistent with an infection than an ordinary breakout.