If the foot is broken, the patient is self-aware and clearly remembers the history of the injury, such as an acute contusion of the foot, stepping out of the way or tripping. At the same time, there will be localized swelling and pain, and in severe cases, subcutaneous ecchymosis as well as dysfunction, but the degree of symptoms is directly related to the severity of the injury. If the injury is only a mild localized strain or contusion, the swelling and pain may not be obvious, and there will be no subcutaneous ecchymosis, but only corresponding pain and discomfort when the joint moves. If the fracture is very severe, resulting in a ligamentous laceration or even an avulsion fracture, extensive subcutaneous ecchymosis, joint dysfunction, swelling and pain will be obvious, especially during activity. Therefore, a foot fracture with a clear history of trauma will present with swelling and pain, and in severe cases subcutaneous ecchymosis as well as dysfunction.