Reviewed By:
Kent C Doan, MD (Orthopedics)
Dr Doan Graduated from the University of Missouri Kansas City School of Medicine and completed residency training in Orthopedic Surgery at the University of Colorado. He completed additional fellowship training in Orthopedic Sports Medicine at the prestigious Steadman Clinic and Steadman Philippon Research Institute in Vail, Colorado. He is a practicing Orthopedic Surgeon who specializes in complex and revision knee and shoulder surgery at the Kansas City Orthopedic Institute. He also holds an assistant professorship at the University of Kansas City.
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.
Content updated on Mar 31, 2024
Following the Medical Content Editorial Policy
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There is a lump
Reddish skin lumps
There are deformed nails
Red skin bumps
Lumps under skin
Abnormalities in fingernail shape
Yellow skin bumps
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Subungual exostosis is a benign bony outgrowth that occurs under the nail of a toe or finger tip. It often happens after trauma or infection in the area and is most common in children and adolescents.
Your doctor may ask these questions to check for this disease:
To remove subungual exostosis, surgery is performed with the affected toe or finger anesthetized. The bone is scraped clean to prevent future outgrowth.
Yousefian F, Davis B, Browning JC. Pediatric Subungual Exostosis. Cutis. 2021 Nov;108(5):256-257. doi: 10.12788/cutis.0380. PMID: 35100532.
https://www.mdedge.com/dermatology/article/248294/pediatrics/pediatric-subungual-exostosisShah SN. Subungual exostosis. Indian J Pathol Microbiol. 2021 Jul-Sep;64(3):598-599. doi: 10.4103/IJPM.IJPM_656_20. PMID: 34341284.
https://www.ijpmonline.org/article.asp?issn=0377-4929;year=2021;volume=64;issue=3;spage=598;epage=599;aulast=ShahVaccaro M, Bartolomeo LD, Cannavo SP. Dupuytren Subungual Exostosis. Indian Pediatr. 2021 Feb 15;58(2):201. PMID: 33632969.
https://www.indianpediatrics.net/feb2021/201.pdfTritto M, Mirkin G, Hao X. Subungual Exostosis on the Right Hallux. J Am Podiatr Med Assoc. 2021 Dec 15;111(6). doi: 10.7547/20-209. PMID: 35294159.
https://japmaonline.org/view/journals/apms/111/6/20-209.xmlMale, 30s
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I was actually very impressed with the results it provided because, although I didn’t mention it during the questionnaire because I thought it was unrelated, it suggested I may have something I’ve actually been diagnosed with in the past.
(Sep 25, 2024)
Reviewed By:
Kent C Doan, MD (Orthopedics)
Dr Doan Graduated from the University of Missouri Kansas City School of Medicine and completed residency training in Orthopedic Surgery at the University of Colorado. He completed additional fellowship training in Orthopedic Sports Medicine at the prestigious Steadman Clinic and Steadman Philippon Research Institute in Vail, Colorado. He is a practicing Orthopedic Surgeon who specializes in complex and revision knee and shoulder surgery at the Kansas City Orthopedic Institute. He also holds an assistant professorship at the University of Kansas City.
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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