Rough “chicken skin” in kids and teens: what parents should know

You notice it while putting sunscreen on your child, or your teen complains about it before a swim meet: small, rough bumps on the backs of the arms or the fronts of the thighs, like permanent goosebumps. It’s almost always keratosis pilaris, and it’s one of the most common skin conditions in young people. Here’s what parents need to know, and what actually helps.

What it is, in plain terms

Keratosis pilaris (often shortened to KP) happens when keratin, the tough protein in the outer skin, builds up and plugs the openings of hair follicles. Each plug makes a tiny rough bump. DermNet describes the look as “goosebump” or “chicken skin”, with bumps that can be skin-coloured, red or brown.

In children and teens it usually shows up on:

• The backs of the upper arms.
• The fronts of the thighs.
• The buttocks.
• In younger children, sometimes the cheeks.

It’s very common in kids and teens

If your child has it, they’re in good company. DermNet estimates that KP affects 50 to 70 percent of teenagers and about 40 percent of adults. A 2025 literature review gives a similar range, 50 to 80 percent of adolescents.

It usually starts in childhood and becomes more noticeable during the teenage years. The same review notes that many people improve with age, though it can persist into adulthood. DermNet says it often clears during adult life.

The reassuring parts, which are worth saying out loud to a worried kid:

• It’s harmless. The NHS describes it as a very common, harmless condition.
• It’s not infectious. It can’t be caught or passed on at school, in the pool or on a sports team.
• It’s not caused by poor hygiene. Washing more won’t prevent it, and scrubbing harder usually makes it look worse.

Why some kids get it: genes, dry skin and eczema

KP tends to run in families. DermNet notes a genetic link, and both DermNet and the 2025 review connect it to changes in filaggrin, a protein that’s key to a healthy skin barrier, the outer layer that keeps water in and irritants out.

That’s why KP often shows up alongside other “dry skin” conditions. Kids with atopic dermatitis (eczema) or ichthyosis vulgaris, an inherited condition that makes skin dry and scaly, are more likely to have KP too. It isn’t an allergy, though. It’s more about how the skin is built.

Dry skin makes KP worse. The AAD notes that KP often flares when skin gets dry, so Canadian winters, with cold outside air and dry indoor heat, can be tough on it.

A gentle routine that helps

There’s no cure, but a simple routine can make skin feel smoother. Based on AAD and NHS advice:

• Short, lukewarm baths or showers. The AAD suggests warm rather than hot water and keeping baths to 20 minutes or less.
• Mild, unperfumed cleansers instead of bar soap or perfumed soaps.
• Moisturizer every day, right after bathing. This is the single most useful habit.
• A humidifier in the bedroom when the air is dry.
• Gentle exfoliation. A soft washcloth used lightly is enough for most kids.

For older children and teens, a moisturizer with an exfoliating ingredient can help. DermNet lists moisturizing creams that contain urea, salicylic acid, lactic acid or alpha hydroxy acids. The 2025 review describes a study in which a 10 percent lactic acid cream, used twice daily for three months, improved roughness, discolouration and overall appearance by about 66 percent. The review also cautions that the evidence overall comes from small studies with short follow-up.

A few child-specific cautions:

• Start with a low strength on a small area. These ingredients can sting, especially on skin that’s dry or scratched.
• DermNet advises that salicylic acid shouldn’t normally be used in children under two, and that young children absorb more of it through their skin. Ask your pharmacist before using it on a young child, or on large areas.
• Exfoliating ingredients dry the skin, so follow with a plain moisturizer, as the AAD recommends.

You can browse the panel’s reviewed moisturizers or filter for products suited to babies and kids.

What not to do

• Don’t scrub hard. The NHS lists harsh scrubs among the things to avoid, and the 2025 review warns that over-exfoliation can cause redness and scaling that makes KP look worse.
• Don’t pick or squeeze the bumps. The NHS lists picking among the things to avoid.
• Don’t use hot water or perfumed soaps.
• Don’t expect overnight results. Improvements take weeks of regular use, and bumps tend to come back if the routine stops.

For teens who remove body hair, the AAD’s self-care advice suggests that shaving and waxing can set off a flare-up.

The teen angle: it’s not just about skin

The 2025 review points out that although KP is medically harmless, it often causes cosmetic distress and can affect self-confidence. For a teen who avoids short sleeves or skips the pool, that matters.

Helpful things parents can do:

• Explain that it’s common, harmless and not their fault.
• Keep the routine simple enough that they’ll actually do it.
• Set realistic expectations: smoother, not perfect.
• Take it seriously if it’s really bothering them, and offer a doctor’s visit.

When to see a doctor

Check in with your family doctor, a pharmacist or a dermatologist if:

• You’re not sure it’s keratosis pilaris.
• The bumps are very red, itchy, inflamed or painful. The NHS suggests seeing a pharmacist if skin becomes itchy or inflamed.
• There’s redness on the cheeks with thinning eyebrows, which DermNet describes in some forms of KP.
• You notice scarring or dents in the skin.
• Home care hasn’t helped after a couple of months, or your child is upset by it. The AAD recommends seeing a dermatologist if KP persists despite home treatment.

The takeaway for parents: keratosis pilaris is extremely common in kids and teens, harmless, not contagious, and often fades with age. It’s linked to dry skin and eczema, so gentle washing and daily moisturizer are the foundation. Mild exfoliating lotions can help older kids; hard scrubbing never does.