Obesity, the word is very familiar to everyone, and most people know it has a close relationship with high blood pressure, diabetes, coronary heart disease and so on. However, most people are not aware of its relationship with joint health, especially the health of weight-bearing joints, so it has a very big impact on many people, and at the same time does not get the right treatment, and then seriously affects the quality of life, and regrets only when it is found that the best time for treatment has been missed, and the consequences are often difficult to reverse. Weight-bearing joints, mainly the hip, knee and ankle, are almost always carrying weight during human walking activities and are under constant pressure of tens of kilograms, and healthy joints can usually help us to bear our standard weight throughout our lives. However, once the weight is too great, the pressure on them increases greatly, especially when bending and carrying weight or exercising, such as climbing, going up and down stairs, squatting and jumping repeatedly, the cartilage structure on the joint surface, which is responsible for bearing the weight, is relatively easy to be overly squeezed, and once the pressure on the cartilage exceeds the limit of the load it can withstand, it is likely to cause irreversible damage, resulting in pain and further joint function. This can cause pain, further limiting the function of the joint and ultimately affecting the quality of life. This load limit is relatively unlikely to be exceeded in a standard weight person, and is much more likely to occur in an obese population. Probably the most common clinical cases are patients with osteoarthritis of the knee, most of whom are relatively obese middle-aged and elderly women, especially when combined with a high level of domestic work and osteoporosis. It is now the disease with the highest incidence and impact of all degenerative osteoarthritis of the joints in the elderly. Many people are forced to undergo knee replacement surgery in their 60s and 70s as a result. I believe that the majority of patients are reluctant to undergo such a major surgery at such an age and at the risk of a relatively high level of safety. Therefore, in order to reduce your risk of such diseases, it is sincerely recommended that you pay attention to your weight, as it is the most important and controllable factor, much better than accidental injuries, occupational factors (e.g. athletes, heavy laborers), genetic factors, etc. With proper control of one’s diet, especially one’s strong desire for food, and a reasonable and healthy exercise regimen, one can usually keep one’s weight within a reasonable range, thus minimizing the excessive burden on weight-bearing joints, improving the duration of joint use, and maintaining a good quality of life, which I think should be the desired outcome for everyone. So, please pay enough attention to your weight, especially not to make obesity a sign of your body, so that you should be able to enjoy the joy of life and the happiness of health as much as possible in your life!