Generally, mild injuries to the joint capsule can heal on their own, but those who have torn the joint capsule are very difficult to heal on their own and need surgical suture treatment. The joint capsule has a certain ability to heal itself, but the result of its self-healing is mainly affected by the degree of injury, due to the protection of joint ligaments, tendons and muscle tissues, the general degree of joint capsule injuries is relatively mild and can be healed in most cases. If the joint capsule is mildly injured, such as contusion, strains or small lacerations, etc., it can be recovered under the state of joint braking and rest. However, in the case of large lacerations or cuts to the joint capsule, surgical treatment is required, such as surgical suturing of the torn joint capsule. It is recommended to go to the hospital after a traumatic joint injury to see if there is any damage to the bony structure of the joint, the ligaments around the joint, the tendons, or the joint capsule, and if there is any damage, it should be treated as soon as possible so as not to jeopardize the prognosis.