Folliculitis looks like a cluster of small red or white bumps, each centered around a hair follicle. Many of these bumps are topped with a visible dot of pus, making them easy to mistake for acne. The surrounding skin is often pink or red from inflammation, and the bumps can feel itchy, tender, or both.
The Basic Appearance
The hallmark of folliculitis is a pustule, a small pus-filled bump, surrounded by a ring of reddened or inflamed skin. A hair usually sits at the center of each bump. The bumps are typically small, ranging from a pinhead to a few millimeters across, and they tend to appear in clusters rather than as a single isolated spot.
In lighter skin tones, the bumps appear red or pink with a white or yellow center. In darker skin tones, the bumps may look skin-colored, darker brown, or purplish-red, with the surrounding inflammation less obviously pink. Some bumps crust over as the pus dries, leaving a yellowish scab on the surface. The area around the rash often feels rough or sandpaper-like to the touch.
Where It Shows Up on the Body
Folliculitis can develop anywhere you have hair, but certain areas are far more common. The thighs, buttocks, and groin are frequent spots, especially in people who wear tight clothing or sweat heavily. The scalp, face, and neck are also common, particularly in people who shave regularly. Fungal folliculitis favors the upper chest and back, where oil-producing glands are dense.
Location is actually one of the best clues for telling folliculitis apart from acne. Acne concentrates on the face, jawline, and upper back. If you’re getting clusters of red bumps on your thighs, buttocks, or arms, folliculitis is the more likely explanation.
How Different Types Look
Bacterial Folliculitis
The most common type, usually caused by staph bacteria. It appears as small red or white pus-filled pimples scattered across the affected area. These bumps are often itchy and mildly painful. They can pop up anywhere but are especially common in areas prone to friction or moisture.
Fungal (Malassezia) Folliculitis
This type looks remarkably like an acne breakout, which is why it’s frequently misdiagnosed. The bumps are uniform in size, itchy, and clustered on the upper chest and back. One key visual difference from acne: fungal folliculitis bumps are more evenly sized and spaced, almost like a rash, whereas acne produces a mix of blackheads, whiteheads, and pimples of varying sizes. Intense itchiness is another giveaway, since acne rarely itches much.
Hot Tub Folliculitis
Caused by bacteria that thrive in warm, poorly chlorinated water, this type produces an itchy, red, bumpy rash with pus-filled blisters around hair follicles. It typically appears one to four days after exposure. The rash is often worst in areas where a swimsuit trapped contaminated water against the skin, creating a distinctive pattern that follows the swimsuit line.
Razor Bumps (Pseudofolliculitis Barbae)
Technically not an infection, razor bumps happen when shaved hairs curve back and re-enter the skin or grow sideways beneath it. The result is skin-colored or red bumps in shaved areas, most commonly the beard region, but also the armpits, bikini line, and legs. Over time, these bumps can darken and leave small scars. People with tightly curled hair are especially prone to this condition because the natural curl of the hair makes it more likely to grow back into the skin.
How It Differs From Acne
The confusion between folliculitis and acne is extremely common, and the distinction matters because they respond to different treatments. Acne develops when pores clog with oil, dead skin cells, and bacteria, producing a mix of blackheads, whiteheads, and deeper cysts. Folliculitis is an infection or irritation of the hair follicle itself.
A few visual differences help separate them. Acne produces comedones (blackheads and whiteheads), which folliculitis does not. Folliculitis bumps almost always have a hair visible at the center. Folliculitis tends to itch, while acne is more likely to be painful than itchy. And if you’re breaking out in an area where you don’t normally get acne, like your thighs, lower legs, or buttocks, folliculitis is the more probable cause.
When It Gets Deeper or More Severe
Superficial folliculitis stays near the skin’s surface and usually resolves within a week or two. But when the infection spreads deeper into the follicle, the bumps become larger, more painful, and swollen. A deep folliculitis lesion can grow into a boil (furuncle), a firm, red, tender lump that may reach a centimeter or more across and eventually develop a central pocket of pus. Multiple connected boils form a carbuncle, which looks like a swollen, painful area with several drainage points.
Severe or recurring folliculitis can also cause the surrounding skin to become generally red, swollen, and warm. In some cases, the infection destroys the hair follicle entirely, leaving a small bald patch on the scalp or a smooth, scarred spot elsewhere on the body.
What It Looks Like as It Heals
As folliculitis clears, the pustules dry out and form small crusts that eventually flake off. The redness fades gradually over several days. In many cases, especially in darker skin tones, the spots leave behind flat, discolored marks where the bumps used to be. These marks range from light brown to almost black and are a normal part of the healing process called post-inflammatory hyperpigmentation.
These dark spots are not scars. They’re temporary, though “temporary” can mean anywhere from a few weeks to several months. Sun exposure can deepen the discoloration and slow fading. True scarring, where the skin texture itself is altered, is uncommon with superficial folliculitis but can occur with deeper infections, razor bumps, or chronic cases that are picked at repeatedly.