Once a sports injury occurs, if it is not handled and treated correctly and in a timely manner, it is easy to cause irreversible damage to the function of the limb, which may affect our motor function or cause disability. So how should we deal with sports injuries correctly? In the acute stage of injury, the first step to be done is the first step is the braking of the injured part, to prevent it from further stress stimulation injury is too large, usually using plaster or support fixation. Many people apply ointment and rub medicinal wine, such as safflower oil, immediately after the injury, which is wrong. Joint sprains and strains should be iced first, and only after 48 hours should topical medications be applied. After the injury should keep long enough to rest, not too early to return to the sports field, in order to prevent the old injury has not healed and add new injuries. If the swelling and bruising of the joints are serious, you should consult a doctor in time. The most common misunderstanding is that you don’t take it seriously and miss the best time to treat the injury because you hope you can get well. Sometimes, if there is no abnormality in the bone quality of the radiograph, it is thought that there is no problem, but it is not known that the injury of articular cartilage, ligament, tendon, etc. needs to be diagnosed by MRI, therefore, when suspecting this kind of injury, it is necessary to follow the doctor’s instruction to carry out the MRI examination. The following is a list of some common clinical work in the joint sports injury treatment. Meniscus Injury The meniscus is a very important structure in the knee joint and acts like a spacer. Only the peripheral 1/3 of the meniscus receives blood supply from the synovium, while the central 2/3 of the meniscus has poor or no blood supply. Therefore, it is very difficult for the meniscus to repair itself once it has been torn. The torn meniscus is constantly rubbed by the femur in the knee joint, which on the one hand tends to increase the size of the tear, and on the other hand, the uneven meniscus will wear down the cartilage on the surface of the femur, which will lead to the formation of osteoarthritis in the long run. At the same time, if the meniscus rupture is too large, the torn part will even turn up and get stuck in the middle of the knee joint, causing severe pain and joint compression. Therefore, meniscus injuries that occur in the central 2/3 of the knee or have a large tear that has shifted should be treated with arthroscopic surgery as soon as possible, while peripheral meniscus injuries that have not shifted can be treated conservatively with braking. Anterior Cruciate Ligament Injury The anterior cruciate ligament plays a very important role in maintaining the stability of the knee joint. When the ACL is injured, the stability of the knee is greatly affected. The patient will feel unstable when playing sports, easy to shake, easy to “play soft legs” during sports or going up and down the stairs, this instability will easily lead to the wear and tear of the joint cartilage, at the same time, the unstable knee joint will become extremely fragile in the strong confrontation sports such as soccer, basketball, and is prone to more serious injuries. As a result, ACL injuries most often require undergoing arthroscopic ligament reconstruction. Patellar dislocation occurs insidiously, and can even be dislocated and reset in an instant, the patient just feels that the knee slides a little, and it is easy to ignore. If the dislocation is not reset by itself, then the knee joint will be painful and swollen, and it needs to be reset in the hospital, and it needs to be fixed in plaster or brace for 4 weeks after reset, and then gradually exercise the mobility of the knee joint and the muscle strength exercises. Repeated dislocation, i.e. recurrent patellar dislocation, is often associated with femoral trolley structure dysplasia, poor patellar trajectory, poor rotational force line of the lower limb, etc., and requires surgical treatment. Rotator cuff injury Rotator cuff injury often occurs in the humerus stop site, where blood flow is not good, it is difficult to heal by itself after the injury, the injury is not big can also be in the compensation of the surrounding muscles to temporarily maintain normal function, but with the activities of the shoulder joint, the rotator cuff rupture will be more and more broken under the constant friction; just like the torn clothes, do not go to sewing, the mouth will be more and more torn larger and larger. Eventually, a large rotator cuff rupture will cause severe functional impairment and pain that is difficult to relieve. The rotator cuff of adolescents has a high water content in the collagen fibers and should not be injured, but it is prone to occur in adulthood, and the author has treated rotator cuff injuries in some college students. Injury is not big can be performed around the shoulder joint muscle strength training and assisted shock wave and other physical therapy, but conservative treatment for a period of time if the symptoms can not be relieved or rotator cuff tear has a tendency to increase should be arthroscopic surgical treatment. Dislocation of the shoulder joint Dislocation of the shoulder joint is common in basketball and volleyball, and is easily combined with injury to the glenoid labral ligament complex of the shoulder joint (Bankart injury), fracture of the anterior and inferior part of the glenoid of the scapula (bony Bankart injury), and compression fracture of the head of the humerus (Hill-sach injury), etc. The initial dislocation of the shoulder joint should be treated promptly. Initial dislocation of the shoulder joint requires prompt manipulative repositioning, which should be performed under anesthesia. After repositioning, mild external rotation in a brace is required for 3 weeks to facilitate the healing of the glenoid labral ligamentous tissues, after which shoulder mobility and muscle strength exercises are initiated. Early treatment is not standardized or adolescent shoulder dislocation is easy to recur, often the second and subsequent dislocations become easier. Repeated dislocations will make the joint capsule more and more lax and easier to dislocate. Repeated multiple shoulder dislocations are very damaging to the articular cartilage and cause psychological fear to the patient, so recurrent dislocations all need surgical treatment. Ankle sprains are very common in daily life, and many people think that they are “minor injuries” and hope to get well, thus delaying treatment. Ankle sprains can lead to ankle ligament injuries, especially lateral collateral ligament injuries, commonly seen in jumping and landing on a foreign object and breaking the foot, the mechanism of the injury inverted rotation and then torsion violence, the ligament tension after the injury is significantly weakened, unable to maintain the stability of the ankle joint, the patient tends to become more susceptible to breaking the foot in the future exercise process. Repeated ankle sprains can also damage articular cartilage and trigger osteoarthritis. The first acute sprain should be treated with compression bandages, ice packs, rest and elevation of the affected limb; after the pain is reduced, the ankle joint should be actively moved, and the patient should gradually walk and do muscle strength training. For patients with repeated sprains and obvious ankle instability, timely surgery is needed to repair the lateral collateral ligament.