A turf toe injury is a sprain of the main joint of the big toe, called the metatarsophalangeal (MTP) joint. It occurs when the big toe is forcibly bent upward (hyperextended) beyond its normal range of motion, causing stretching or tearing of the ligaments, tendons, or soft tissues that support the joint. This injury is commonly seen in athletes, especially those playing sports on artificial turf, hence the name "turf toe." The injury can range in severity from mild stretching to complete tearing of the soft tissues, leading to pain, swelling, bruising, and limited toe movement. Turf toe can significantly affect activities involving walking, running, and jumping and often requires rest or, in severe cases, surgical repair to recover.