The knee is one of the largest joints in the body, consisting of the femur, tibia and patella. It is the weight-bearing joint of the body and one of the joints most susceptible to injury. The knee joint is the joint with the highest morbidity rate in the whole body. Knee pain not only involves various lesions within the joint, but is also often caused by various extra-articular factors. At present, most of the older people have three major misconceptions about knee joint disease. Myth 1: early joint pain, take some painkillers, endure on the good Most of the early knee cartilage injury patients, in the beginning, just going up and down the stairs when the knee pain, at this time they do not care, often using calcium, take painkillers to solve the way. Why does it hurt to go up the stairs and down the stairs? That shows that the joint cartilage has been worn out, due to the loss of cartilage lubrication and protection, the knee joint will feel sore when walking. Calcium supplements are not helpful in treating cartilage wear and tear, but in dealing with osteoporosis. Painkillers can only solve the pain for a while, but the cartilage that has already worn away cannot be repaired. In the early stages of cartilage wear, it is recommended that hyaluronic acid be injected into the joint cavity. Myth 2: Joint pain, long-term bed rest will be fine After further aggravation of the condition, patients mistakenly believe that their joints are aging, incurable, and thus choose not to exercise, do not get off the ground, long-term bed rest. You can’t climb mountains after cartilage damage, but effective exercise for the cartilage can’t be stopped. Patients should exercise their muscles without weight bearing to ensure the stability of the joints, because muscle ligament atrophy can also cause joint instability. Myth 3: I heard that joint surgery is very painful, do not go to surgery Some patients are afraid of surgical pain or worry about the operation can not be well recovered and refused surgical treatment, preferring to choose in the onset of joint pain, “endure”, do not know that every joint pain, the condition will worsen a point, the longer the inflammatory response, the more harmful substances on the destruction of joint cartilage, the greater the damage. The longer the inflammation reaction lasts, the more harmful substances damage the joint cartilage. Early and middle stage knee osteoarthritis treatment “six rules” 1, intra-articular injection of hyaluronic acid 2, oral articular cartilage supplements. 3, effective joint exercise. 3. Perform effective joint exercises. ①Flexing and extending the knee joint while lying on the bed; ②Flexing and extending the knee joint without weight bearing (sitting position). 4, massage around the joint. Circular massage, hands holding the knee rotating massage, 3 times a day, 3 minutes each time. 5, three do not do: not hiking, not playing tai chi, not weight-bearing upstairs. 6, diet more conducive to joint cartilage metabolism of calcium-rich, collagen-rich foods, such as milk, soy milk, shells and other seafood, flower gums, fish mouth, phoenix claws, pig’s feet and so on.