Many middle-aged and elderly women have pain in both knees. They have severe pain when they go upstairs and downstairs, and sometimes they dare not squat. But it doesn't hurt to walk on a flat road? I will ask them: Do you usually like to squat and choose vegetables and mop the floor? Do you like climbing mountains and stairs to exercise?

X-ray films of these patients will show the following manifestations: degeneration of patellofemoral joint, cystic change of patellofemoral joint surface and hyperosteogeny. Patella abrasion test (+) during physical examination, some patients even have effusion in joint cavity, and patella floating test (+) is clinically called synovitis.

These are the clinical manifestations of chondromalacia patellae. Chondromalacia patellae is one of the common causes of pain in front of knee joint, and its incidence rate is often higher in women than in men. The causes of chondromalacia patellae mainly include:

1, trauma-When wrestling or bumping the knee, the patellar cartilage is directly or indirectly damaged, and the cartilage is inflamed and softened.

2. Abnormal development of patella-patella position is high or low, inclined, dislocated or subluxated in some patients, which will cause patella instability. The friction between patella and femur is more intense than that of normal people, and the patella cartilage will soften after a long time.

3. Soft tissue inflammation of knee joint —— After inflammation of synovium around the joint, the composition of synovial fluid will change, and the content of some inflammatory factors will increase, leading to cartilage dissolution, loss of elasticity and smooth surface, which will lead to patella softening.

It is found that the pressure on the cartilage surface of patella when climbing stairs is 3-5 times that when walking on the flat ground. Among outpatients, many middle-aged and elderly female patients are used to squatting on the ground to mop the floor and choose vegetables. Some patients have developed the habit of climbing stairs every day and Xiangshan every week based on health care considerations. Although these exercises can exercise and improve cardiopulmonary function, they accelerate the degeneration of knee joint. If you exercise too frequently and exercise too much, you may even cause arthritis and synovitis.

So here's a reminder: take good care of your knee joint in daily activities, try to take a flat road and take the elevator. Moderate exercise and moderate relaxation can achieve the best health care effect.