Ligament contracture joint stiffness may be related to long-term inactivity, osteophytes, osteoarthritis and other factors. 1. Prolonged inactivity: Prolonged bed rest and inactivity due to surgery, plaster cast immobilization or weakened physique, and lack of rehabilitation exercises for muscle ligaments and joints will lead to ligament contracture and joint stiffness. Under the guidance of the doctor, you should carry out active activities, take the initiative to exercise the muscles and joints, and gradually restore the mobility of the joints. 2. Osteomalacia: Irregular bone damage caused by stress on bone or joint cartilage, poor posture, weight bearing, trauma, etc., leading to subchondral bone sclerosis, cysts and marginal bone growth. More common in the elderly. Ligament contractures and joint stiffness will occur, and some patients will have obvious symptoms such as swelling and compression. Treatment of the primary disease should be actively sought. 3. Osteoarthritis: Osteoarthritis is a common chronic degenerative joint disease. The disease is mostly seen in middle-aged people, severe osteoarthritis due to pain leading to reduced activity, inflammatory response leading to soft tissue adhesions, and thus the symptoms of ligament contracture and joint stiffness, can be prescribed by diclofenac sodium, celecoxib and other non-steroidal anti-inflammatory analgesic drugs. There are many other causes of ligament contracture and joint stiffness, and it is necessary to consult a doctor in time to clarify the cause of the disease and carry out targeted treatment.