ONYCHOCLAVUS (SUBUNGUAL CORN)
By Gary M. White, MD
Onychoclavus (or subungual corn) represents a hyperkeratotic response of the skin to repeated pressure/trauma between the distal nail and the underlying tissue or bone. An X-ray to rule out an exostosis may be indicated.
A very painful, hyperkeratotic papule in the distal subungual zone is characteristic of this type of corn.
The nail should be trimmed and the corn pared. To prevent recurrence, the footwear may be changed and bony lesions (if present) removed.
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.