Intercondylar fracture of the humerus with severe pain, widespread pressure pain, and significant swelling after trauma to the elbow joint, which may be accompanied by subcutaneous bruising. It is a fracture that occurs between the medial and lateral condyles of the humerus and their adjacent parts. There is severe pain, widespread pressure and swelling, and subcutaneous bruising after trauma to the elbow joint. If the fracture is severely displaced, there may be widening of the transverse diameter of the lower humerus, and if the overlap displacement is severe, there may be shortened deformity of the upper arm. The elbow joint is semi-extended, the forearm is rotated forward, and the bony structure of the posterior triangle of the elbow is disturbed, and the fracture block can be palpated and the bone rubbing sensation is obvious. Sometimes nerve and blood vessel injury may be combined, which should be noted during the examination. How to prevent and treat swelling and pressure pain in the elbow? 1.Manual repositioning plaster brace fixation is suitable for type I and II fractures with mild separation, first squeeze the two condyles to reposition them, then rectify the displacement of the supracondylar area, and finally fix the elbow joint in neutral position for 4-6 weeks with long-arm plaster anterior and posterior brace. 2, can not be closed reset or for some reasons failed to timely treatment of open injury, feasible ulnar hawk traction, combined with closed rectification, in the process of traction can be early functional exercises. Traction is generally 4-6 weeks, or 4 weeks to traction and then 2 weeks of protective braking with plaster rest. 3.For accurate repositioning and early functional exercise, type III and IV fractures can be repositioned by incision, fixed with plates and screws, without external fixation as much as possible, and functional exercise of the elbow joint can be started within a few days to 2 weeks after surgery. 4.For elderly patients, patients with severe fractures and patients with other disorders that are not suitable for surgery or long-term fixation, a neck and wrist sling can be used to brake the elbow joint at 90° of flexion and start functional exercise early.