As the saying goes, people get old before they get old legs. Many people have leg pain, knee pain and other symptoms as soon as they get older, and the pain will increase when the climate turns cold and rainy, which may be suffering from old cold legs. Some people say, with the old cold leg, we should “save” the legs, but this will lead to a serious decline in the quality of life, and does not help the condition. The old cold leg is a degenerative disease The old cold leg is actually a degenerative disease of the joints of the whole body, especially the joint cartilage. It does not refer to a single disease, but also includes osteoarthritis, osteophytes, bone spurs and other bone diseases. The incidence of cold leg is very high, nearly 50% of people over 60 years old and nearly 80% over 70 years old. The disability rate of cold leg is also very high, reaching 53%. Degenerative disease of bone is an irresistible physiological phenomenon that occurs with age. Degenerative disease can occur in all parts of the body, but it is more likely to occur in the knee than in other joints. This is because the knee is one of the larger weight-bearing joints in the body. Since people are born and start walking around the age of 1, they use their legs the most, so they have more chances to be injured and have lesions. There are many early symptoms of cold leg, including vague pain on both sides or on one side of the knee, which is aggravated by activity and relieved after rest; symptoms are aggravated when it rains on cloudy days or when the climate becomes cooler; sometimes acute pain attacks, joint stiffness, and popping sound when moving; joint stiffness is aggravated after sitting for a long time, but slightly improved after activity; at a later stage, the knee joint will be enlarged and deformed, and the range of activity will be limited, and there will be continuous pain. The knee joint is composed of the patella, thigh bone and calf bone, and its degenerative lesions mainly occur in the cartilage. Cartilage is a special tissue that is rich in water and protein and has elasticity. When a person walks, runs or jumps, it deforms and the contact area between the two bones becomes larger. However, when people get older, the cartilage ages and thins, the joint fluid decreases, the joint stiffens, and the activity becomes inconvenient. After a knee injury, it is not easy to recover, and the cartilage falls off little by little, which in turn stimulates some of the surrounding synovial membrane, which becomes congested, edematous, exuding, and fluid-forming, which is an important cause of leg pain. Four types of people should be vigilant “old cold leg” from the literal meaning of the understanding, as if it is an old age disease. But in recent years, the onset of “old cold legs” is not the “patent” of the elderly, many young people in their early thirties have gradually become the main onset of this disease, especially the following four types of people should be alert to old cold legs. 1, menopausal women. This part of the population the incidence of old cold legs than men 6 times higher. Because menopause estrogen levels decline, resulting in joint nutrition decline, easy to cause injury, lesions. 2, obese people. The incidence of osteoarthritis in the overweight population is much higher than the normal population, and the age of onset is easy to advance. Studies have also found that if obese patients reduce their weight by 5 kg, the incidence will be reduced by 50%. 3, and engaged in the occupation related. If you were an athlete, model, heavy laborer when you were young, these people are prone to the disease because of the occupational reasons that lead to a lot of wear and tear on the knee joint and a lot of damage. 4. Injured when young. Especially if the knee joint has been injured, it will directly affect the cartilage. If the cartilage is not flat, it will wear out early and degenerate without waiting for old age. The above four types of people should pay attention to the five signs of old cold leg: 1, leg sinking, especially on cloudy days, which is the early symptoms of osteoarthritis. 2, morning stiffness, morning when the joints are not flexible. 3, sitting for a long time can not get up. 4.Knee joint pain within a month, repeatedly, even red, swollen, a little hot to the touch. 5.There is some bone rubbing sound when moving.