Kerion Quiz
Reviewed By:
Yukiko Ueda, MD (Dermatology)
Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.
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Bulging patch of skin
Before the hair loss, the scalp was itchy
Smelly bumps
Red rash
Receding hairline
Pus in the chest
Pus on the back of the neck
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Learn more about Kerion
Content updated on Nov 2, 2022
A kerion is an abscess that appears as a large, spongy lump filled with pus and caused by inflammation from a fungal infection. It is commonly seen on the scalp but can develop anywhere. Anyone can be affected, but it is most common in children. Infection can spread through physical contact, sharing hairbrushes, towels, bedding, etc.
Bumps containing pus
Hair loss
Skin redness or red bumpy rashes
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?
Antifungal drugs are usually prescribed to be taken orally. Antifungal soaps and shampoos may be useful to reduce the risk of spreading to other household members. If a bacterial infection is also present, antibiotics may be prescribed.
Diseases related to Kerion
References
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.
https://onlinelibrary.wiley.com/doi/10.1111/ijd.13423
Grijsen ML, de Vries HJC. Kerion. CMAJ. 2017 May 23;189(20):E725. doi: 10.1503/cmaj.160665. PMID: 28536129; PMCID: PMC5436964.
https://www.cmaj.ca/content/189/20/E725
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Reviewed By:
Yukiko Ueda, MD (Dermatology)
Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.
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