Keratosis pilaris ("chicken skin") 

  • Overview

Introduction 

Keratosis pilaris, also known as "chicken skin", on the top of the arm 

Keratosis pilaris is a common and harmless condition where the skin becomes rough and bumpy, as if covered in permanent goose pimples.

There's no cure for keratosis pilaris, but there are things you can do to improve the rash, such as using soap-free cleansers and gently exfoliating (removing dead skin cells from the surface of the skin).

There's no real need to see your GP unless the condition is causing you concern. It will usually improve as you get older and will sometimes disappear completely in adulthood.

This page provides more information on keratosis pilaris and explains what you can do if you think you have it or if you've just been diagnosed with it. 

Where keratosis pilaris occurs

Keratosis pilaris most commonly affects the back of the upper arms, and sometimes the buttocks and front of the thighs. Less often, the forearms and upper back may be affected.

There are also rare variants of keratosis pilaris that can affect the eyebrows, face and scalp, or the entire body.

How it affects the skin

The patches of affected skin will be covered in tiny spiky bumps, which may be white, red or skin-coloured. This spotting looks like "chicken skin" or permanent goose pimples, and the skin feels rough, like sandpaper.

In some people, the skin will itch and there may be some inflammation and pinkness around the bumps.

Keratosis pilaris is not contagious (it cannot be spread from person to person).

The skin tends to improve in summer and get worse during winter months or dry conditions.

Who is affected

Keratosis pilaris is very common, affecting up to one in three people in the UK. It can affect people of all ages but it is particularly common in:

  • children and adolescents
  • females 
  • people with eczema or a condition called ichthyosis (thick, dry scaly skin)
  • people of Celtic origin

The condition typically starts during childhood (although it can sometimes occur in babies), and gets worse in adolescence, around puberty.

Keratosis pilaris sometimes improves after puberty, and it may even disappear in adulthood, although many adults still have the condition in their 40s and 50s. It's uncommon in elderly people.

What causes keratosis pilaris?

Keratosis pilaris runs in families and is inherited from your parents. If one parent has the condition, there is a one in two chance that any children they have will also inherit it.

Keratosis pilaris occurs when too much keratin builds up in the skin's hair follicles. Keratin is a protein found in the tough outer layer of skin, which causes the surface of the skin to thicken (hence the name "keratosis").

The excess keratin blocks the hair follicles with plugs of hard, rough skin. The tiny plugs widen the pores, giving the skin a spotty appearance.

It is often associated with other dry skin conditions, such as eczema and ichthyosis, which make the rash worse.

Treating keratosis pilaris

There is little that can be done to treat keratosis pilaris, and it often gets better on its own without treatment.

However, if it is bothering you, the following measures may help improve your rash:

  • Use non-soap cleansers rather than soap – ordinary soap may dry your skin out and make the condition worse. 
  • Moisturise your skin when it's dry your GP or pharmacist will be able to recommend a suitable cream. However, moisturisers and emollients will only reduce the dryness of your skin and will not cure the rash. Creams that contain salicylic acid, lactic acid or urea are thought to be the most effective.
  • Gently rub the skin with an exfoliating foam pad or pumice stone to exfoliate the rough skin – be careful not to scrub too hard and rub off layers of skin.
  • Take lukewarm showers rather than hot baths.

You can also ask your GP about 'off label' treatments that may help. These are products that haven't been officially approved and licensed for treating keratosis pilaris, but are sometimes used because they have helped people in the past. Examples include:

  • creams containing retinol (which is derived from vitamin A)
  • chemical peels
  • microdermabrasion – a cosmetic exfoliation treatment which is sometimes offered in health spas

There is no strong evidence to suggest that these therapies are effective treatments for keratosis pilaris. You may also have to pay for some of them privately.

Page last reviewed: 28/05/2013

Next review due: 28/05/2015

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Comments

The 3 comments posted are personal views. Any information they give has not been checked and may not be accurate.

jakoykoy said on 03 October 2014

@lah04: yup that is also my thought over buzzybees question. derma would likely to prescribed us moisturizer with lactic acid. but we should know also that we can create lactic acid on our selves alone and that helps remove the red dots.
@buzzybees: thanks for sharing this! :)

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lah04 said on 06 June 2013

Buzzy Bees: When you lift weights, your body creates lactic acid, which is one of the ingredients found in common KP specific lotions, like Lac-Hydrin. I'm a 23 yr old female, and have been lifting heavy-ish weights for the last few months 3+ times a week and it has helped me as well.

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BuzzyBees said on 24 May 2013

Hi All,

I thought I'd create an account to share a little bit of info regarding Keretosis Pilaris cures.

I'm a healthy 22yo Male and have had this 'Chicken Skin' (Covering my triceps and a bit on my thighs) from my last year in high school up until about 6 months ago.

I found that moisturising the affected areas did ease the redness and make it look a hell of a lot better but didn't completely cure it. That is until I started hitting the weights at the gym around 6 month ago. I have noticed that the KP on my arms has almost disappeared completely. I no longer have red spotty triceps and feel a lot more confident in wearing t-shirts as I was a little embarrassed by the KP.

Now this could be total coincidence that the KP has disappeared while I've been at the gym but I firmly believe that lifting weights has certainly ridded me of it.

I was wondering what some people think of this. How can lifting weights cure this skin condition? I was thinking something simple along the lines of more blood pumping around my bicep/tricep area promoting good circulation and better recovery? Or just my skin simply stretching has cancelled these little red devils out.

Either way, I thought I'd share this with somebody who was at the end of their tether with KP.

Would love to hear if this has worked for any others.

Thanks

Bees

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