Bone spur knee is caused by osteoarthritis. After aging, the human body will develop degenerative osteoarthritis of the knee joint with age, resulting in narrowing of joint space and hyperosteogeny, which is called bone spur. The appearance of bone spurs in the knee joint is an imaging feature of sharp points on the X-ray film, which indicates that the joint has entered a period of degeneration, so it is necessary to delay the degeneration of the joint. It is impossible to eliminate bone spurs after they grow out. It is impossible to eliminate bone spurs by squatting down or wearing them by other methods. There are several treatment methods: First, pay attention to reducing the wear of knee joints, reducing weight, avoiding long-distance walking, avoiding climbing buildings and mountains, thus reducing the wear of cartilage and extending its service life. 2、 It can keep warm by hot compress, promote local blood circulation, help to increase the nutrition of bone and joint, so as to promote the regression of inflammation and reduce swelling. 3、 Straight leg lifting or swimming should be done every day, which can exercise the quadriceps femoris, increase its strength, increase the stability of joints, and thus reduce the wear of cartilage during the activity. 4、 Anti inflammatory and analgesic drugs or glucosamine can also be used to effectively treat osteoarthritis, but bone spurs cannot be eliminated. External plaster or other physical therapy methods are also very important for the treatment of osteoarthritis. Through comprehensive treatment, most osteoarthritis can be effectively alleviated. Only in osteoarthritis patients with severe varus or valgus deformity, bone spurs are also very obvious, and the gap is severely narrow, so joint replacement can be considered.