Subungal exostosis is more commonly referred to as a bone spur under the toenail. This condition is generally caused by toe trauma, which results in the formation of a bony irregularity or prominence. The normal treatment for subungal exostosis is surgical removal. Other small tumors, called osteochondromas and enchondromas, can also form in the bone beneath the toenail.


Stephen T. Frascone, DPM
Matthew Hansen, DPM
Laura LaMar, DPM
Jonathan King, DPM
 
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