By Gary M. White, MD


The onychopapilloma is an uncommon but benign growth of the nail root or bed.


The onychopapilloma most commonly presents as longitudinal erythronychia, but also may present as longitudinal leukonychia, longitudinal melanonychia, splinter hemorrhage(s), or as a distal V-shaped onycholysis. Dermoscopy of the free edge of the nail plate shows a small subungual keratotic mass. Histologically, there is nail matrix metaplasia with marked papillomatosis.


None is needed. Surgery may be done.

Additional Photos



A ridge runs longitudinally and a keratotic tubular growth extends out from the nail bed.


Erythronychia representing onychopapilloma. Courtesy of Julie Minocha, MD


JAAD 2016;74;521

Surgery for onychopapilloma. JAAD January 2011 Volume 64, Issue 1, Pages 167.e1–167.e11


Homepage | FAQs | Use of Images | Contact Dr. White

It is not the intention of RegionalDerm.com to provide specific medical advice, diagnosis or treatment. RegionalDerm.com only intends to provide users with information regarding various medical conditions for educational purposes and will not provide specific medical advice. Information on RegionalDerm.com is not intended as a substitute for seeking medical treatment and you should always seek the advice of a qualified healthcare provider for diagnosis and for answers to your individual questions. Information contained on RegionalDerm.com should never cause you to disregard professional medical advice or delay seeking treatment. If you live in the United States and believe you are having a medical emergency call 911 immediately.