what is a bunion deformity
Bunion Deformity. A bunion is a bump found on the inside of the foot at the base of the great toe. The deformity usually involves the first metatarsophalangeal joint (MTP). This joint is made up of the phalanx bone inside the toe and the metatarsal bone in the forefoot. If you bend your toes up you can feel the ends of the metatarsals on the bottom of the foot.