What is keratosis pilaris?

Tiny, rough, often skin-coloured or red bumps caused by dead skin cells clogging hair follicles — most often on the upper arms and thighs. It's harmless and very common, and it's not acne.

How do I get rid of keratosis pilaris?

There's no cure, but gentle exfoliation and consistent moisturizing can smooth it. The AAD points to gentle exfoliation plus moisturizers; ingredients like ammonium lactate or urea help. It often fades with age.

Is keratosis pilaris caused by poor hygiene?

No. It's about dead skin cells clogging follicles (and tends to run in families and go with dry skin), not cleanliness. Scrubbing harder actually makes it worse.

Often, yes — keratosis pilaris commonly improves with age and many adults find it fades. In the meantime it's harmless, and gentle care keeps it smoother.

Keratosis Pilaris ("Chicken Skin"), Explained

If you've got little rough bumps scattered across the backs of your arms or your thighs — sometimes called "chicken skin" — and you've wondered whether it's acne, a deficiency, or something you're doing wrong, here's the reassuring answer: it's almost certainly keratosis pilaris, it's completely harmless, and it's incredibly common.

What it is

Keratosis pilaris (KP) causes tiny, rough-feeling bumps, often on the upper arms, thighs, cheeks, or buttocks. They can be skin-coloured, red, or brown, and the skin can feel like fine sandpaper. The American Academy of Dermatology describes it as harmless — no health risk at all.

What causes it

The bumps form when dead skin cells clog hair follicles. Instead of shedding normally, keratin (a skin protein) plugs the follicle, creating the bump. It's not about hygiene; it tends to run in families and goes hand in hand with dry skin, which is why it often looks worse in winter.

It's also not acne — no oil-and-bacteria cycle, no blackheads. So acne products won't fix it (and may just irritate).

Who gets it

KP is most common in children and teenagers, and the AAD notes it often fades and gradually disappears with age, so fewer adults have it. If you do carry it into adulthood, it's still harmless.

What actually helps

You don't need to treat KP — but if the texture or look bothers you, gentle, consistent care makes a real difference. The AAD's self-care approach centers on gentle exfoliation plus moisturizing:

Exfoliate gently. A washcloth, loofah, or a chemical exfoliant — but don't scrub hard. Aggressive scrubbing irritates KP and makes it worse. Mild exfoliating acids (like salicylic acid or lactic acid) can help loosen the plugs.
Moisturize well. Especially after bathing, on damp skin. Ingredients like ammonium lactate or urea soften the bumps; everyday humectants like hyaluronic acid help with the dryness.
Be consistent and patient. KP responds to routine, not intensity, and it comes back if you stop — managing it is ongoing, not one-and-done.
Mind the dryness triggers. Lukewarm showers and a humidifier in winter help.

When to see a doctor

KP is harmless, so this is mostly cosmetic — but see a dermatologist if the bumps are very red, inflamed, itchy, or bothering you and self-care isn't enough; prescription options (like stronger lactic-acid or urea creams) exist. And as always, if you're unsure a bump is KP — or anything is new, changing, bleeding, or won't heal — get it checked rather than assume.

Not sure those bumps are KP?

A dermatrix.life assessment can give you an informed, written read of your photos to help tell KP from look-alikes. As ever, it's informational, not a diagnosis and fully automated — a starting point, not a substitute for a professional.

Start a skin assessment →