Most bumps on the scrotum are completely harmless and clear up on their own or with basic hygiene changes. The most common causes are infected hair follicles (folliculitis), ingrown hairs from shaving or friction, and Fordyce spots, which are a normal part of skin anatomy found in 70% to 80% of adults. The key is figuring out what you’re dealing with, treating it gently, and knowing which bumps need a closer look.
What’s Probably Causing the Bumps
Scrotal skin is thin, warm, and prone to sweating, which makes it a common spot for a few types of bumps. Folliculitis happens when bacteria get into a hair follicle and cause a small red, pus-filled bump that looks like a classic pimple. Ingrown hairs occur when a hair curls back into the skin instead of growing outward, creating a raised, tender bump that can also fill with pus. Both are especially common after shaving or trimming.
Fordyce spots are tiny, pale or yellowish bumps that sit just under the skin’s surface. They’re oil glands without a hair follicle attached, and they’re not infections or pimples at all. They don’t hurt, don’t spread, and don’t need treatment. If the bumps you’re seeing are small, painless, and have been there for a long time without changing, there’s a good chance they’re Fordyce spots.
Sebaceous cysts can also form on scrotal skin. These are firm, round lumps under the surface caused by a blocked oil gland. They’re usually painless unless they become infected, at which point they may swell, turn red, and feel tender.
How to Treat Them at Home
For folliculitis and ingrown hairs, the single most effective treatment is a warm compress. Heat clean water to a comfortably hot temperature, soak a clean cloth, and hold it against the bump for one to three minutes. Repeat this a few times a day. The warmth increases blood flow, softens the skin, and helps the bump drain naturally. If you want to boost the antibacterial effect, you can dampen the cloth with a diluted vinegar solution: one tablespoon of white vinegar per pint of water.
Gently wash the area at least twice a day with an antibacterial soap or a cleanser containing benzoyl peroxide. Over-the-counter antibiotic ointments can also help clear mild infections. If the area is itchy, a lightweight hydrocortisone cream can calm things down. Stick to low-strength, non-greasy formulas, since scrotal skin is thinner and more sensitive than the skin on your face or back.
One important warning: do not squeeze, pop, or try to cut open any bump. This significantly increases your risk of infection, can push bacteria deeper into the tissue, and won’t guarantee the bump stays gone. Cysts in particular will often refill after popping because the sac wall remains intact under the skin. Let warm compresses do the work, and if a bump won’t resolve on its own, a doctor can drain it properly.
Be Careful With Acne Products
Standard acne treatments like salicylic acid and benzoyl peroxide are designed for thicker facial skin. Salicylic acid in particular comes with explicit warnings against use on genital skin, where it can cause severe irritation. If you want to use benzoyl peroxide as a wash, choose a low concentration (2.5%) and rinse it off rather than leaving it on. Avoid any leave-on treatments with strong active ingredients in this area unless a doctor specifically recommends them.
How to Prevent New Bumps
If your bumps keep coming back, the culprit is almost always hair removal or friction. Adjusting your shaving technique can make a significant difference:
- Always use shaving gel or cream. These products reduce friction and protect the skin from razor burn.
- Use a sharp, clean razor. Dull blades drag across the skin and increase the chance of ingrown hairs.
- Shave with the grain. Glide the razor in the same direction your hair grows. Shaving against the grain gives a closer cut but forces hair tips below the skin surface, where they’re more likely to curl inward.
- Don’t press hard. Let the razor glide without pulling the skin taut or pushing down.
- Moisturize afterward. A lightweight, non-greasy moisturizer keeps skin soft and reduces irritation as hair regrows.
Gentle exfoliation between shaves helps too. A washcloth or a product with glycolic acid encourages skin cell turnover and keeps new hairs from getting trapped. If ingrown hairs are a chronic problem despite good technique, laser hair removal or electrolysis can reduce or eliminate regrowth permanently.
Beyond shaving, wear breathable underwear made from cotton or moisture-wicking fabric. Tight, synthetic materials trap heat and sweat against the skin, creating the exact environment bacteria thrive in. Shower soon after exercising or heavy sweating, and change out of damp clothing quickly.
When a Bump Might Be Something Else
Most scrotal bumps are skin-deep and benign, but a few types of bumps deserve attention.
Genital herpes causes fluid-filled blisters that are often painful, burn, or itch. They tend to appear in clusters, may break open and scab over, and can come with body aches or fever during the first outbreak. These look different from a pimple once the blister stage develops, but early on they can be easy to confuse.
Genital warts from HPV are small, soft, flesh-colored growths that can be flat or slightly raised. They’re usually painless and tend to appear in clusters with a slightly rough, cauliflower-like texture. Unlike pimples, they don’t have a white or yellow head and don’t resolve in a few days.
Molluscum contagiosum produces firm, dome-shaped bumps with a dimple in the center. They’re painless and spread through skin contact.
If bumps are recurring, spreading, painful in an unusual way, or accompanied by symptoms like fever, burning during urination, or unusual discharge, getting tested for STIs gives you a clear answer and access to treatment.
Skin Bumps vs. Lumps Inside the Testicle
There’s one distinction worth making clearly: bumps on the skin of the scrotum are almost always benign skin issues. A lump felt inside the testicle itself is a different situation. Testicular cancer typically presents as a painless, hard lump within the testicle that can be as small as a pea. Most testicular lumps turn out not to be cancer, but because this is one of the most treatable cancers when caught early, any new lump inside the testicle warrants a visit to a doctor. A simple test where a light is shone through the scrotum can often distinguish a fluid-filled cyst (which glows) from a solid mass (which doesn’t), right in the office.