Arm soft tissue injury, usually need 4-8 weeks to recover, the details are as follows: First, arm soft tissue injury, if only for the muscle, tendon mild injury, can be short-term braking, cold compresses, oral celecoxib capsule, loxoprofen sodium tablets, grass australopithecine tablets and so on to eliminate inflammation and swelling, can make the patient in four weeks or so to get fully recovered. Secondly, if the lateral collateral ligament is injured, it needs to be fixed with a brace, usually fixing the joint for 4-6 weeks, the patient can remove the external fixation and start the functional exercise. Recovery of atrophied muscles, and to restore the range of motion of the joint, it usually takes about eight weeks to make the patient’s function fully recovered. Therefore, the length of recovery time for soft tissue injury of the arm mainly depends on the location and degree of injury, the more severe the injury, the recovery time will be extended accordingly, while the less severe the injury, the recovery time will be significantly shorter.