The recovery time for tendon injuries is a little shorter than for tendon ruptures, mostly taking 2 weeks. The etiology of tendon injury is similar to that of tendon rupture, mostly due to violent trauma, sharp cutting injury, machine crushing injury, etc. The symptoms are mostly swelling at the injury, pain, limited movement of the limb, slightly worse strength of movement than the opposite side, and open trauma patients may be accompanied by skin rupture and bleeding. Most patients with closed tendon injuries can recover with conservative treatment, requiring only local splinting or cast immobilization and braking to provide a stable environment for tendon repair, reduce the symptoms of local injury, and prevent further aggravation. For patients with open tendon injury, surgical anastomosis can be used, and postoperative cast fixation and braking is used to ensure the repair of the injured tendon. In addition, patients need functional exercise after removal of the cast in about 2 weeks to prevent tendon adhesions and joint stiffness, but note that functional exercise should be appropriate to avoid aggravation of the injury or even rupture.