For example, although arthroscopic surgery is a minimally invasive surgery, which requires only 2-3 small 5mm holes in the joint, some of the synovial membrane must be cut out during the arthroscopic surgery, and some patients are very sensitive to synovial resection, and the pain near the incision after the surgery is finished. Some patients are sensitive to synovial resection, and the pain near the incision will stay for a long time. Some patients find that the meniscus does not hurt after 7-8 months of surgery, but they still feel pain after walking for a long time, because the pain near the incision is very uncomfortable. In addition, the meniscus is very important, after the meniscus is missing, the damage to the joint is relatively large, there will definitely be sequelae, resulting in patients’ daily life and sports will be significantly limited, so the meniscus must communicate with the patient well before surgery, the doctor must do a good measurement for the patient before surgery. Arthroscopic surgery patients should also consider whether the benefits of surgery outweigh the drawbacks, if the benefits outweigh the drawbacks, then surgery should be done, if the benefits are less than the drawbacks, then surgery cannot be done, if and when the benefits and drawbacks are equal, we must weigh whether surgery must be done. Arthroscopic surgery can have different degrees of sequelae, but the sequelae may be mild and the patient may not feel anything after the surgery, but sometimes the patient may feel heavier and wonder if the surgery was done for nothing.