The knee joint is one of the most athletic and weight-bearing joints in the body. Statistics show that the knee is the most common of all joint sprains, with ligament injuries being the most common of all knee injuries. At the same time, the health of the knee is very important to our lives, and often just a minor pain can make our lives very uncomfortable. And in everyday life and sports, due to the lack of common sense in sports for the average person, there are more sports accidents than for athletes, leading to more sports injury diseases, and the sports medicine treatment techniques in our country are not popular among doctors nationwide, so from time to time, there are knee sprains that are not clearly diagnosed or do not know how to treat. The most common injuries to the knee are cartilage injuries, meniscal injuries and ligament injuries. First, cartilage injuries. Most of these injuries can be resolved with proper rest in the early stages, and the pain may even be asymptomatic in the future. However, if you do not rest in time and repeatedly exercise to make it worse, the recovery will be much slower and will also affect future sports function. For example, chondromalacia patellae. The results of surgery for this type of disease are not certain, and only some people are suitable for surgery, which can only be determined after examination by a professional sports medicine doctor. Second, meniscus injury. Because most of them are caused by sports injuries only in young people, they have higher requirements for future sports functions. Moreover, generally meniscal injuries cannot heal on their own and may even cause significant pain, swelling, and locking, etc. Moreover, once the injury time exceeds 3 months, the meniscus will show significant degeneration, that is, degeneration, and at this time, the effect of treatment will be greatly reduced. Patients are usually advised to undergo arthroscopic surgery as early as possible, and sometimes there is a chance of repair, although this chance is not too much. In addition, the surgery is less invasive and the recovery is faster, so the earlier the treatment, the better the results. Normal physical activity can usually be resumed in about 3 months. Older people, such as those over 40 or 50 years old, are usually caused by years of use, strain, and occasional pain induced by straining somewhere or working on the floor for a long time to produce symptoms, when in fact the injury may have existed for several years. This injury, if there is significant pain and strangulation, can also be treated surgically, but the results may not be as good as the treatment of young people after sports injuries. Because the strain itself can bring cartilage damage and other problems, not surgery can be completely solved. Third, ligament injuries. The medial collateral ligament and anterior cruciate ligament injuries are the most common. When the former is injured alone, most do not need surgery, with a straight splint (brace) fixed for 3-4 weeks can generally heal themselves. The ACL injury is different, because it usually affects the motor function significantly, and even appears to be unstable such as easy to sprain again in life, which can then cause damage to the cartilage and meniscus and eventually lead to osteoarthritis, so for young people, especially men, early surgery is recommended. Therefore, for young people, especially men, early surgery is recommended. The later the surgery, the worse the results, especially after the more obvious damage to the cartilage has occurred. In addition, early surgery has a very good chance of meniscus repair. In women, patients who do not have high sports requirements and do not have significant instability in the knee joint in their daily life can also be observed for a period of time, but if it worsens or if there is another sprain, surgery is still recommended. If there are no more symptoms, one can instead consider always observing and paying attention. In summary, no matter what kind of knee sprain occurs, the initial symptoms may be pain, swelling, interference with walking and movement, etc. Usually there is temporary relief after a few days of rest. However, many disorders do not actually recover, but merely do not hurt or swell. Therefore, it is recommended that no matter what form of apparent sprain of the knee occurs, you should see a sports medicine professional or an osteoarthritic doctor and treat it as early as possible if it needs to be treated to avoid delays. Of course, you can do ice packs, brake rest and other protection before going to the hospital, which usually helps a lot. If there is no specialist sports medicine doctor in your local area, you should still see a specialist hospital as early as possible if you feel the problem is indeed bigger, so as not to miss the best time to treat it. Finally, I hope that patients who have had or just had an acute sprain of the knee can learn about this knowledge through the internet, which will help you in your visit. Of course, you can always contact me on the internet to see me, and if it is an acute sprain of the knee, you can find me to add a number as long as it is my clinic time, and I will take better care of out-of-town patients. I guarantee that you can be seen when you come over. I hope that I can provide the maximum amount of my knowledge to patients who need help, so that everyone can recover their health and even regain their athletic ability as soon as possible.