Keratosis Pilaris

Keratosis pilaris is a very common, harmless skin condition that causes small, rough bumps — often on the upper arms, thighs, and cheeks. It is caused by keratin plugging hair follicles.

Table of Contents

Quick Facts

  • ICD-10: L11.0
  • Concerning?: No — harmless
  • Common: Especially in children

Features

  • Small (1–2 mm) rough bumps
  • Skin-colored, pink, or red
  • Often on upper outer arms, thighs, buttocks, cheeks
  • Drier in winter
  • Usually painless; may itch slightly

Treatment

  • No treatment is necessary; cosmetic improvement only
  • Moisturize regularly with creams or lotions containing urea, salicylic acid, lactic acid, or alpha-hydroxy acids
  • Gentle exfoliation
  • Topical retinoids for stubborn cases
  • Avoid scrubbing harshly (can worsen)
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. If you are experiencing a medical emergency, call your local emergency number immediately.

References

  • American Academy of Dermatology. Keratosis Pilaris Resources.