Definition
Turf toe is a sprain of the base of the big toe, where the big toe meets the foot. It is usually a hyperextension sprain of the first metatarsophalangeal joint. A sprain is stretching or tearing of the ligaments that support a toe. Ligaments are strong bands of tissue that connect bones to each other. The injury is called turf toe because it often occurs in football and soccer players when playing on artificial turf.
Turf Toe Swelling

