Kerion Quiz

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Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

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Learn more about Kerion

Content updated on Nov 2, 2022

What is kerion?

A kerion is an abscess that appears as a large, spongy lump full of pus and that is caused by inflammtion due to fungal infection. Commonly seen on the scalp, but can develop anywhere. Anyone can be affected, but most commonly seen in children. Infection can spread through physical contact, sharing hairbrushes, towels, bedding, etc.

Symptoms of kerion

  • Bumps containing pus

  • Hair loss

  • Skin redness or red bumpy rashes

Questions your doctor may ask to check for kerion

Your doctor may ask these questions to diagnose kerion

  • Do you have bumps on your skin with pus?

  • Have you felt that you are losing more hair recently?

  • Do you have red skin or red spots on the skin?

Treatment for kerion

Antifungal drugs are usually prescribed, to be taken orally. Antifungal soaps and shampoos may be useful to reduce risk of spreading to other members of the household. If bacterial infection is also present, antibiotics may be prescribed.

View the symptoms of Kerion


  • John AM, Schwartz RA, Janniger CK. The kerion: an angry tinea capitis. Int J Dermatol. 2018 Jan;57(1):3-9. doi: 10.1111/ijd.13423. Epub 2016 Oct 1. PMID: 27696388.

  • Grijsen ML, de Vries HJC. Kerion. CMAJ. 2017 May 23;189(20):E725. doi: 10.1503/cmaj.160665. PMID: 28536129; PMCID: PMC5436964.

Reviewed By:

Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

From our team of 50+ doctors

Just 3 minutes.
Developed by doctors.

Ubie is supervised by 50+ medical experts worldwide

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