Hallux valgus of the foot (or bunion) is an outward deflection of the big toe. This deviation causes the bone called the “first metatarsal” to move inward in the foot. All of these movements will cause a lump on the inner edge of the forefoot. This bump is in fact the joint between the metatarsal and the first phalanx of the big toe which has become very prominent due to the various deviations. It is this lump that is called hallux valgus or “bunion.”

The bump may appear on one foot or on both feet at the same time. In the latter case, we speak of bilateral deformation. Hallux valgus are often more troublesome and more painful.

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