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Foot Problems

You are in Foot Problems > Toe Problems > Subungal Exotosis (bone spur under toenail). Featured topics include:
Bunions  •   Claw Toe  •   Digital Deformity  •   Hallux Limitus (stiff big toe joint)  •   Hallux Rigidis (rigid big toe)  •   Hallux Varus  •   Hammertoes  •   Intoeing  •   Overlapping, Underlapping Toes  •   Subungal Exotosis (bone spur under toenail)

Subungal Exotosis (bone spur under toenail)

A Subungual Exostosis is more commonly referred to as a bone spur under toenail. They generally are a result of some form of trauma to the toe, forming a bony irregularity or prominence. They are normally treated by surgical removal. Other small tumors called Osteochondromas and Enchondromas can also form in the bone beneath the toenail as well as in other bones in the body.


The strongest and largest tendon, the Achilles tendon connects muscles in the lower leg with the heel bone. Sports that tighten the calf muscles, such as basketball, running and high-jumping can overstress this tendon and cause a strain (Achilles tendinitis) or a rupture. A direct blow to the foot, ankle, or calf can also cause it.










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