Simply put, a hallux varus is a deformity of the foot where the tip of the big toe is pointing inward. This is the opposite of a bunion, where the big toe points outward. However, although a bunion is one of the most common big toe problems, a hallux varus is fairly uncommon. The condition seldom causes joint pain, but frequently causes friction pain, as the toe rubs against the shoe.
Causes can be due to many factors. You might, for example, be born with a foot structure that is prone to a hallux varus deformity. The condition can also result from other foot surgery (such as removal of a bunion), due to the delicate balance of muscles and tendons.
Treatment may focus on stretching the abductor hallucis tendon through specific exercises or toe splints. In severe cases, surgery may be recommended. During the surgery, a small incision is made on the side of the toe and the toe is splinted in a neutral or straight position.