(1) Avoid excessive knee activity and strain, especially for those who play vigorous sports with both lower extremities (e.g. dancers, athletes, porters, etc.), and pay more attention to the combination of work and rest to prevent tissue damage caused by excessive force; otherwise, osteophytes are likely to occur as we age. (2) When a fracture occurs in the knee joint, it is important to go to the hospital in a timely manner so that the fracture end meets the requirements of anatomical repositioning as much as possible. If the reset is unsatisfactory, surgery should be taken promptly. (3) Those who are too obese should control their diet appropriately, pay attention to adjusting the diet structure, reduce the calorie intake, and keep the weight within the appropriate range to reduce the pressure and wear on the joint. (4) The elderly can take appropriate supplements of calcium, vitamin D and other drugs closely related to bone metabolism joints, and at the same time engage in moderate physical exercise to slow down the aging and degenerative change process of bone tissue.