Keratosis Pilaris (Chicken Skin): Symptoms, Causes and Treatment in the UK

Keratosis pilaris, frequently referred to as 'chicken skin' in the UK, is an extremely common and benign skin condition. It manifests as small, rough bumps on the skin, typically found on the back of the upper arms, thighs, buttocks, and sometimes the face. These bumps can be skin-coloured, red, or even brown, depending on your skin tone, and often give the skin a texture similar to sandpaper.

According to NHS guidance, keratosis pilaris is not contagious and cannot be spread from person to person. It is not an infection or an allergy. Instead, it is a structural issue within the skin's follicles. While it may be aesthetically frustrating for many patients, it is physically harmless and does not lead to more serious health complications.

The primary symptom of keratosis pilaris is the appearance of tiny, hard bumps. Unlike acne, these bumps do not contain pus and are generally not painful. Key features include:

• Painless bumps: They are usually asymptomatic, though they can occasionally feel slightly itchy if the skin becomes very dry.
• Sandpaper texture: The affected area feels rough to the touch.
• Worsening in winter: Symptoms often flare up during colder months when the air is dry and humidity is low.
• Redness: Some people experience slight redness (keratosis pilaris rubra) around the bumps.

In the UK, many patients find that their skin improves significantly during the summer months when humidity levels are higher and UV exposure (in moderation) may help soften the keratin plugs.

Keratosis pilaris occurs when there is a buildup of keratin—a tough protein that protects the skin from harmful substances and infection. In people with this condition, the keratin forms a scaly plug that blocks the opening of the hair follicle. When many plugs form, it causes patches of rough, bumpy skin.

While the exact trigger for this buildup is unknown, there is a strong genetic component. If a parent has keratosis pilaris, there is a high chance their children will also develop it. It is also frequently seen alongside other dry skin conditions, such as atopic eczema or ichthyosis. NICE (National Institute for Health and Care Excellence) notes that the condition is most prevalent in children and adolescents, often clearing or improving significantly by adulthood.

While you cannot 'cure' the genetic tendency for keratin buildup, you can manage the texture of your skin effectively. British dermatology experts recommend a two-step approach: exfoliation and hydration.

Gentle Exfoliation

Use a loofah, exfoliating mitt, or a body scrub in the shower to gently buff away dead skin cells. Avoid harsh scrubbing, as this can irritate the follicles and increase redness.

Chemical Exfoliants

Look for creams containing salicylic acid, lactic acid, or alpha hydroxy acids (AHAs). These ingredients help dissolve the keratin plugs without the need for abrasive scrubbing.

Specific Moisturisers

Hydration is critical. Use 'keratolytic' moisturisers that contain urea. Urea helps to both soften the skin and break down the excess protein. Applying these immediately after bathing helps lock in moisture.

Most cases of keratosis pilaris do not require medical intervention. However, you may wish to speak to a GP online if:

• Home treatments and over-the-counter creams have failed to show improvement after several months.
• The bumps are becoming increasingly red, inflamed, or painful (which may suggest a secondary infection or folliculitis).
• The condition is causing significant psychological distress or affecting your confidence.
• You are unsure of the diagnosis and want to rule out other skin conditions like acne or fungal infections.

A UK online doctor can review photos of your skin, provide an accurate diagnosis, and recommend high-strength clinical moisturisers or topical steroid creams if there is significant inflammation. They can also provide a private prescription for treatments not easily found on the high street.

For persistent cases, a GP or dermatologist may suggest more intensive treatments. These include:

• Topical Retinoids: Derivatives of Vitamin A, such as tretinoin or adapalene, can help promote cell turnover and prevent the follicles from plugging. These are usually available via prescription.
• Steroid Creams: If the skin is particularly red and itchy, a short course of a mild topical corticosteroid may be prescribed to reduce inflammation.
• Laser Therapy: While not usually available on the NHS for this condition, private clinics in the UK offer laser treatments to reduce the redness associated with keratosis pilaris rubra.