What is the cause of leg and knee joint pain?

Joint pain in the legs and knees is usually caused by osteoarthritis, rheumatoid arthritis, or damage to soft tissue such as muscles and ligaments. Patients can be caused by factors such as standing and walking for a long time, strenuous exercise, trauma or cold. If the meniscus is torn, the synovial membrane will proliferate and degenerate, causing aseptic inflammation, leading to pain, stiffness, swelling or limited mobility. Patients can complete X-rays, magnetic resonance imaging and other imaging examinations to determine the specific condition. In terms of treatment, patients can consider taking oral non-steroidal anti-inflammatory drugs, such as celecoxib capsules, ibuprofen sustained release capsules, etoricoxib tablets, etc. Patients can also cooperate with physical therapy, such as low-frequency pulse magnetic therapy, interference electric ultrasound, etc., which also has corresponding relief effects.