Is knee pain due to old age_What is knee pain? My knee hurts, but I can’t tell you exactly where it hurts. It hurts when I go downstairs, when I squat, when I stand for a long time, and in cold weather, too. Knee pain is usually what disease? In fact, the vast majority of people have osteoarthritis. So, do you know about this disease? What is osteoarthritis? Osteoarthritis is a kind of degenerative disease, is due to ageing, obesity, strain, trauma, joint congenital anomalies, joint deformities and many other factors caused by degenerative damage to articular cartilage, joint edges and subchondral bone reactive hyperplasia, also known as osteoarthropathy, degenerative arthritis, senile arthritis, hypertrophic arthritis and so on. Clinical manifestations are slowly developing joint pain, pressure pain, stiffness, joint swelling, restricted movement and joint deformity. Why are knees so fragile? There is a layer of cartilage on the surface of the knee joint, which allows the knee to move more smoothly and is a layer of protection for the bone. Ageing, obesity, sports strain, trauma, etc. can cause the cartilage to wear out. When the cartilage wears down, the joint surface becomes uneven and friction increases, which can further aggravate joint damage and cause osteoarthritis and knee pain. Signs and Effects of Osteoarthritis Osteoarthritis can occur in any joint, and common areas include the hands, knees, hips, and spine. Signs of Osteoarthritis: Stiffness or inflexibility of the joints after getting up or sitting for a long time Swelling or pain in one or more joints Feeling or sound of bones rubbing together during activities Bone spurs, hard nodules around the joints What are the causes of knee pain? 1, obesity trouble When our weight increases, the pressure on the knee also increases, aggravating the burden on the knee. The pressure resistance of the knee is reduced, leading to excessive pressure on the surrounding blood vessels, nerves and muscles, which will cause knee pain over time. 2, often cold, cold knee pain may be related to cold stimulation. When the knee is stimulated by cold for a long time, it causes the temperature of the surrounding skin to decrease, the surrounding blood vessels contract, the blood supply to the knee tissue decreases, and the uric acid component in the blood is deposited, inducing pain. Therefore, in our daily life we should pay attention to keep warm, especially the seasonal changes, if necessary, you can wear knee pads. When the pain, you can also apply hot compresses to relieve it. 3, chronic exertion Long-term poor posture, prolonged weight bearing, exertion, excessive pulling, excessive exercise, etc. may cause knee ligament strain, or wear and tear, thus triggering knee pain. Commonly found in athletes, dancers, and employees in long-term standing jobs. Therefore, it is necessary to properly relax the knee joint so that it can get a good rest. 4, caused by lack of calcium When the knee cartilage lacks calcium, there will be osteoporosis, bone thinning and stiffness, and the tolerance to withstand pressure is correspondingly weakened. At this time, if overwork or local pressure is too heavy, it will cause pain. Therefore, it is necessary to treat osteoporosis in time, supplement calcium and cooperate with doctors. 5.After trauma In daily life, the knee will cause pain when it is stimulated by the outside world. Generally some of the original disease treatment, the pain will gradually disappear. 6, knee joint disease caused by knee pain and we often hear of some diseases, such as osteoarthritis, synovitis, rheumatoid arthritis, gout, bone spurs, etc., so early detection and early treatment.