Facial Folliculitis: Symptoms, Causes, and Treatment of Folliculitis on the Buttocks

Do you have small red bumps on your buttocks—sometimes with a white pustule on top—that itch or feel hot when you sit for a long time? There’s a good chance it’s folliculitis. It’s the most common cause of bumps on the buttocks in adults, far more common than acne.

Folliculitis is a mild but unpleasant condition that tends to recur if the underlying cause isn’t addressed. The good news is that it responds well to treatment: a gentle skincare routine, a few lifestyle changes, and, if necessary, medical treatment. For maintenance, a lactic acid-based anti-blemish body treatment helps the skin prevent follicle blockage. Here’s everything you need to know to recognize folliculitis on the buttocks, treat it, and get rid of it for good.

What is buttock folliculitis?

Folliculitis is a skin condition characterized by inflammation of the hair follicles—the small channels from which hair grows. It can affect any part of the body where hair grows: the scalp, the beard, the legs, the bikini area, and very often the buttocks.

On the buttocks, this area provides the perfect conditions for pimples to form: constant friction, heat, sweat buildup, and skin that’s compressed while sitting. The hair follicle becomes irritated and clogged, and the bacteria naturally present on the skin take advantage of this to multiply.

There are two levels:

• Superficial folliculitis, by far the most common: small, superficial pimples that heal without leaving scars.
• Deep folliculitis, which affects the entire follicle: larger, harder, and more painful pimples that can develop into boils, or even carbuncles when several boils merge. See the article on large pimples on the buttocks.

Symptoms: How to Recognize Folliculitis on the Buttocks

The diagnosis is usually clinical: a doctor can identify it during an examination, without the need for tests. Typical signs include:

• Small red bumps, often numerous, each centered on a hair (this is the most characteristic sign).
• White pustules on top of some pimples—small, pus-filled bumps.
• Redness around the pimples, sometimes spreading throughout the entire area.
• Itching, a burning or tingling sensation, especially after a day of sitting or a workout. See also : Why does a pimple on your butt itch?
• A typical location: where the skin rubs and is compressed, under the folds of underwear, or where it comes into contact with a chair or saddle.

A breakout of small bumps on the buttocks that appears after exercising, shaving, or taking a hot bath is almost always folliculitis.

The Different Types of Folliculitis

Bacterial folliculitis

This is the most common form. It is most often caused by Staphylococcus aureus, a bacterium found on the skin and in the nose of many people without causing illness. When the hair follicle is damaged, the bacterium colonizes it and causes small pustules. It is also the cause of boils.

Fungal folliculitis

Less common, it is caused by a yeast naturally present on the skin (Malassezia), which proliferates in a warm, moist, and oily environment. It manifests as small, very uniform bumps that itch intensely, and it does not respond to antibiotics, which often points to this diagnosis. It is exacerbated by heat, excessive sweating, oily creams, and prolonged use of antibiotics or corticosteroids.

Hot-Tub Folliculitis

It appears one to two days after bathing in a poorly maintained hot tub, spa, or heated pool, in the areas covered by a swimsuit. It is caused by a bacterium that thrives in warm water. It usually clears up on its own within one to two weeks.

Irritant folliculitis

Although it does not start as an infection, it is caused by mechanical irritation: shaving, hair removal, friction, or tight synthetic clothing. It is often the gateway to bacterial folliculitis.

Causes and Risk Factors

Buttock folliculitis is rarely caused by a single factor. It results from a combination of factors that irritate the hair follicle and promote bacterial growth:

• Friction and tight clothing: jeans, leggings, and synthetic underwear that constrict the skin all day long.
• Sweat and heat: The buildup of sweat causes the skin to become macerated, especially in the summer.
• Prolonged sitting—whether at the office, in the car, or on a bike—causes pressure that blocks the follicles.
• Sports: sweat, friction, and clothes that stay damp after a workout. This topic is covered in detail in the article on pimples on the buttocks and sports.
• A wet swimsuit left on for hours after swimming.
• Shaving and hair removal, which damage the hair follicle and can lead to ingrown hairs.
• Inadequate hygiene: not enough (sweat left on the skin), too much (harsh soaps that strip the skin), or a damp washcloth that’s been reused—a veritable breeding ground for bacteria.
• Thick creams and oils that clog hair follicles.
• Risk factors: oily or acne-prone skin, diabetes, a weakened immune system, being overweight, and hormonal changes—such as those that occur during pregnancy.

For an overview of possible causes, see the article on the causes of pimples on the buttocks.

Folliculitis or something else?

Several conditions resemble folliculitis. Knowing how to distinguish between them helps you avoid using an inappropriate product.

• Acne: It involves blackheads and comedones—which are rare in folliculitis—and primarily affects the face, back, and upper torso. True acne is uncommon on the buttocks.
• Keratosis pilaris: small, rough, dry bumps that are painless and do not form pustules, giving the skin a “chicken skin” appearance. Learn all about it in the article on keratosis pilaris.
• Heat rash: tiny, off-center bumps on a hair follicle that appear within a few hours in hot weather. See heat rash on the buttocks.
• Ingrown hair: a single bump with the hair visible beneath the skin. See the guide on ingrown hairs.
• A boil: a single large, red, warm, and very painful pimple. It is a form of deep folliculitis that requires special attention: see “painful pimple on the buttock.”

How to Treat Folliculitis of the Buttocks

Superficial folliculitis often clears up on its own within seven to ten days, provided that the underlying cause is addressed. Here are the steps to take, from the simplest to the most medical.

1. Basic Care, Starting with the First Pimples

• Clean the area once or twice a day with a mild, fragrance-free soap, using your hands rather than a washcloth.
• Dry thoroughly by patting with a clean, personal towel that is changed frequently.
• Let your skin breathe: wear loose-fitting clothes and cotton underwear; avoid tight synthetic fabrics during a flare-up.
• Stop shaving or removing hair from the area until it has completely healed.
• Apply a warm compress for 10 minutes several times a day to relieve the feeling of tightness and help the pustules drain on their own.

2. Assets That Help

• An antiseptic soap, used for a short period during a flare-up (a few days), not daily: if used for too long, it disrupts the skin's natural balance.
• Benzoyl peroxide cleansing gel, left on for a few minutes before rinsing: an effective topical antibacterial treatment for bacterial folliculitis. It may irritate the skin and discolor clothing.
• Salicylic acid and lactic acid: they gently exfoliate, unclog hair follicles, and help hair grow back. This is the principle behind Fesse Time, a lactic acid-based body treatment for the skin on the buttocks, to be applied once a day to clean skin, avoiding open wounds.
• Tea tree essential oil, always diluted in a vegetable oil, applied topically to a few pimples.

3. Medical Treatment

If topical treatments are not enough, the doctor or dermatologist will tailor the treatment to the underlying cause:

• Bacterial folliculitis: topical antibiotic (cream or ointment), and oral antibiotic if the folliculitis is widespread, deep, or recurrent.
• Fungal folliculitis: antifungal cream or foaming gel, sometimes in tablet form.
• Boil or abscess: drainage performed by a doctor, sometimes combined with antibiotics.
• Recurrent hair-related folliculitis: Laser hair removal, which permanently reduces hair regrowth, is often the most effective long-term solution.

Never take an antibiotic or a medication “that was left in the cabinet” without consulting a doctor: an inappropriate treatment can make fungal folliculitis worse.

What to Avoid

• Popping or picking at pimples: The infection spreads to nearby follicles, and the risk of dark spots or scars increases.
• Rubbing an inflamed area with a horsehair glove or a coarse-grained scrub: micro-injuries worsen the inflammation.
• Prolonged hot baths and hot tubs during a flare-up.
• Oily, occlusive creams, which clog the hair follicles.
• Using too many products: Layering anti-blemish treatments can end up irritating the skin. A gentle cleanser, an active ingredient, and a light moisturizer are enough.

Preventing Recurrences

Folliculitis tends to recur if the underlying causes remain. A prevention routine consists of just a few simple steps.

• Shower and change right after exercising, without waiting, and don't keep a wet swimsuit on.
• Gently exfoliate once a week—for example, with a sugar scrub—on skin that is free of inflamed pimples. Tips for gently exfoliating your skin.
• Moisturize your skin every day with a lightweight, non-comedogenic product: supple skin allows hair to grow out more easily.
• Use an exfoliating ingredient (lactic or salicylic acid) as part of your skincare routine a few times a week to keep your pores clear.
• Adjust your shaving routine: use a clean blade, shave in the direction of hair growth, on wet skin, and never on irritated skin. Or consider laser hair removal.
• Laundry care: Use your own towel and washcloth, change them frequently, and wash them at 60 °C if you have recurrent bacterial folliculitis.
• Minimize friction in your daily life: wear loose-fitting clothing and take regular breaks when sitting for long periods of time.

When to See a Dermatologist

You should see a doctor or dermatologist if:

• the pimples do not improve after two weeks of appropriate treatment;
• they become large, hard, hot, and painful (boil);
• folliculitis spreads or recurs regularly;
• it is accompanied by a fever or fatigue;
• you have diabetes or a weakened immune system;
• if it affects a baby or young child, or occurs during pregnancy (certain treatments are contraindicated in such cases).

A dermatologist can confirm the diagnosis through a clinical examination and, if necessary, take a sample to identify the bacteria or yeast responsible, and then recommend an appropriate treatment plan. For a comprehensive overview of treatment options, the guide explains how to get rid of pimples on the buttocks.

FAQ

This article is published for informational purposes only; it is not a substitute for medical advice.