Soft tissue contusion and tendon injury are completely different concepts. A soft tissue injury is a medical term for a hematoma or exudate caused by external force or blunt injury to the skin, subcutaneous tissue, and fatty layer, usually without injury to the muscles or tendons, and usually after 2-3 days of rest, usually no more than a week or so, full functional recovery can be obtained, with at most a subcutaneous hematoma, but no functional impairment. Injury to tendon is a common term, in clinical terms it refers to injury to joint ligaments, which usually requires rest for at least a month, or even surgery in severe cases, the so-called injury to tendon for 100 days, and can even be accompanied by fractures of varying degrees. Therefore, soft tissue contusions are not injuries to tendons, soft tissue injuries are less severe than injuries to tendons, joint ligament injuries are also injuries to tendons, the degree of injury as well as the rest time, the degree of prognosis or the prognosis of the outcome is worse than soft group injuries and longer recovery time.