Elbow pulling, also known as “radial head subluxation”, “elbow misalignment”, “elbow dislocation”, painful paralysis, elbow sickly injury, nanny elbow, irritated elbow, etc.. In Chinese medicine, it belongs to the category of “tendon out of groove and bone misalignment”. It occurs mostly in children under 5 years old, with the highest incidence at 1~3 years old. Our doctor adopts manual repositioning together with physical therapy and medication to promote joint function recovery and prevent recurrence. The following is a list of precautions and post-treatment care for the parents of the child. Cause of injury: Most of them have no history of trauma, but are caused by the sudden lifting of the forearm by others when the child is in an upright or sitting position, or squatting. Winter and spring is common. For example, when going down steps to prevent children from falling and pulling the forearm, in winter and spring to make children’s arms through the sleeves and pulling the forearm, etc., these actions are slightly improper, can appear pulling elbow. Once the elbow occurs, it is easy to recur. The pathogenesis: It is mainly due to the fact that children under 5 years old have almost equal diameter of the radial tuberosity and its neck, and the annular ligament is lax, so when the forearm is suddenly pulled, the humeral radial joint gap increases, the negative pressure inside the joint increases, and the anterior elbow capsule and annular ligament are sucked into the joint and become embedded. Performance: Pain in the back of the elbow or wrist, semi-flexion of the elbow, afraid to rotate back and flex the elbow, normal appearance, no swelling or deformity, refusal to actively lift or move the affected limb, increased pain or automatic avoidance of physical examination by pressing the radial tuberosity during passive activity, no obvious fracture or dislocation on X-ray. Precautions: 1. The child may also have wrist pain during the consultation, which is caused by the disorder of the corresponding lower radial-ulnar joint relationship after radial-ulnar joint subluxation, and the elbow examination should not be omitted to avoid misdiagnosis. 2.After the reset, it is necessary to confirm whether the child’s elbow function is restored, and only after the child is quiet and the child is induced to move the elbow actively with toys, and can lift the upper limb over the head and actively grasp objects with the hand, can the child’s elbow joint be confirmed to be reset before leaving. 3. If the patient is still crying or the elbow activity does not improve after the manual repositioning, be alert and take a film in time to exclude the fracture. Note to parents: Avoid excessive pulling on the right elbow joint to prevent the recurrence of pulled elbow and send the child home to rest. Key to prevention: Parents should avoid pulling the forearm in daily life. When wearing thick clothes in winter and spring, do not exert too much force; when going down steps, hold and then go down again to prevent the child from falling and then increase the weight of the child pulling on the elbow joint, making the radial head subluxation. After the restoration of the elbow, wear clothes on the affected side first, then on the healthy side, and take off clothes on the healthy side first, then on the affected side.