Bunions are called hallux abductovalgus when the joint of the big toe(hallux) is involved,and are called tailor's bunions or bunionettes when they occur on the little toe side of the foot. A bunion is when your big toe points toward the second toe. This causes a bump on the edge of your foot, at the joint of your big toe.

Bunions are often caused by narrow-toed, high-heeled shoes. These compress the big toe and push it toward the second toe. The condition may become painful as extra bone and a fluid-filled sac grow at the base of the big toe. This leads to swelling and pain. Bunions occur more frequently in women and sometimes run in families.