Medical Dermatology

Keratosis pilaris (“chicken skin”)

Those tiny rough bumps on the backs of your arms or thighs are almost always keratosis pilaris — harmless, very common, and very manageable with the right routine.

A Juniper Dermatology clinician talking with a patient about keratosis pilaris in Bend, Oregon

Overview

Understanding keratosis pilaris

Representative clinical image of keratosis pilaris — tiny rough bumps clustered on the back of the upper arm
Keratosis pilaris looks like tiny rough bumps — often on the upper arms, thighs, or cheeks — giving skin a sandpaper feel. (Representative image.)

Keratosis pilaris — often nicknamed “chicken skin” — is an extremely common, harmless condition that shows up as small, rough bumps, most often on the backs of the upper arms, the thighs, the buttocks, and sometimes the cheeks. The skin can feel like fine sandpaper, and the bumps are sometimes surrounded by a little pink or red. It's not painful or contagious, and it doesn't signal anything wrong with your health.

The bumps form when keratin — a protein that protects the skin — builds up and plugs the hair follicles, trapping the tiny hairs beneath. It tends to run in families, is more noticeable in drier weather (hello, Central Oregon winters), and is especially common in children, teens, and young adults. Many people find it improves on its own with age.

Keratosis pilaris can't be permanently cured, but it responds well to the right skincare — and a dermatologist can help you get real results instead of guessing in the drugstore aisle. The goal is simple: smoother, softer skin and less redness, with a routine that's easy to keep up.

What actually helps — and what to skip

Keratosis pilaris improves with consistency, not aggression. A dermatologist-guided routine focuses on:

  • Gentle exfoliation with the right ingredients — like urea, lactic acid, salicylic acid, or glycolic acid — to loosen the keratin plugs.
  • Rich moisturizing to soften the bumps and calm rough, dry texture.
  • Avoiding hard scrubbing or picking, which irritates the skin and can worsen redness or leave marks.
  • Prescription-strength options when over-the-counter products aren't cutting it, plus help for any lingering redness.

When to see a dermatologist about ‘chicken skin’

Keratosis pilaris is harmless, so treatment is optional — but it's worth a visit if:

  • The bumps bother you cosmetically and drugstore products haven't helped.
  • There's noticeable redness on the cheeks or arms that you'd like calmed down.
  • You're not sure whether it's keratosis pilaris or something else (like acne or eczema).
  • It's itchy, inflamed, or your child is self-conscious about it — we can make it easier to live with.

Signs & symptoms

What we look for

Tiny rough bumps

Small, painless bumps that give the skin a sandpaper-like texture.

Common locations

Most often the backs of the upper arms, the thighs, the buttocks, and sometimes the cheeks.

Pink or red tinge

The bumps are sometimes surrounded by mild pink or red, especially on fair skin.

Drier-weather flares

Often more noticeable in winter or dry climates, and can improve in humid months.

Usually not itchy

Most people have no symptoms beyond the texture, though it can occasionally itch.

Runs in families

It's frequently inherited and often starts in childhood or the teen years.

How we treat it

Your treatment options

Keratosis pilaris is managed rather than cured — so we build a simple, sustainable routine that smooths the bumps, softens the skin, and calms redness.

Exfoliating treatments

Targeted products with urea, lactic acid, salicylic acid, or glycolic acid to gently dissolve the keratin plugs behind the bumps.

Prescription topicals

Stronger prescription creams (such as topical retinoids or higher-strength urea) when over-the-counter options aren't enough.

Intensive moisturizing

Rich, dermatologist-recommended moisturizers to soften rough texture and support the skin barrier — especially in dry weather.

Redness care

Options to calm the persistent pink or red around the bumps, particularly on the cheeks and arms.

A routine that fits

A realistic, easy-to-maintain plan — because consistency is what actually keeps the skin smooth.

The right diagnosis

Confirming it's keratosis pilaris and not acne, eczema, or another look-alike, so you're treating the right thing.

When to come in

If those rough bumps bother you, haven't improved with drugstore products, or you're just not sure what they are, a dermatologist can confirm it's keratosis pilaris and set you up with a simple routine that actually works. It's harmless — so treating it is entirely about what makes you comfortable in your skin.

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Common questions

Keratosis Pilaris FAQ

What is keratosis pilaris?

Keratosis pilaris is a very common, harmless skin condition that causes small, rough bumps — often called ‘chicken skin’ — most often on the backs of the upper arms, thighs, buttocks, and sometimes the cheeks. It happens when keratin builds up and plugs the hair follicles. It isn't painful, contagious, or a sign of any underlying health problem.

Can keratosis pilaris be cured?

There's no permanent cure, but it's very manageable and often improves with age. With the right routine — gentle exfoliation, good moisturizing, and sometimes prescription treatments — you can smooth the bumps and reduce redness significantly. Because it's a tendency in the skin, keeping up a simple maintenance routine is what keeps it under control.

How do I get rid of the bumps on my arms?

The most effective approach combines gentle chemical exfoliation (ingredients like urea, lactic acid, salicylic acid, or glycolic acid) with rich moisturizing — and avoiding harsh scrubbing or picking, which makes it worse. If over-the-counter products aren't working, a dermatologist can prescribe stronger options and help with any redness. We'll tailor a routine to your skin.

Is keratosis pilaris the same as acne?

No, though they can look similar. Acne involves oil, clogged pores, and inflammation and often comes with whiteheads, blackheads, or pimples, while keratosis pilaris is a buildup of keratin in the hair follicles that creates uniform, rough little bumps — usually without the pus or larger pimples of acne. Getting the right diagnosis matters, because the treatments are different.

Why is my keratosis pilaris worse in winter?

Dry air makes keratosis pilaris more noticeable, so it commonly flares in cold, dry weather — which is why many people in Central Oregon notice it more in winter. Consistent moisturizing and gentle exfoliation through the drier months help keep the skin smoother.

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