Mr. Wang called to ask: I am 48 years old and have had pain and mobility problems in my left hip for more than two years. Usually, I have mild pain when I walk, which is relieved after rest. However, in recent times, I often wake up at night because of pain in my crotch. One hospital has diagnosed it as osteoarthritis. Doctor’s answer: In orthopedic outpatient cases, many patients visit the clinic for hip osteoarthritis, which mostly manifests as hip pain, limited joint movement, difficult walking and limping. This is due to the severe wear and degeneration of the cartilage surface of the hip joint, the peeling of the cartilage surface, the sclerosis of the subchondral bone and the formation of bone redundancy. In the late stage of the disease, the hip pain will become more severe. At the same time, the muscles around the hip often show unconscious muscle spasm, which is a kind of self-protection reaction of the body. When the muscles are completely relaxed during deep sleep at night, any slight movement of the limbs can provoke the diseased hip joint, triggering sudden pain and painful awakening. Therefore, a history of waking up with pain at night indicates that the patient’s hip joint lesion is quite serious. For young patients with severe osteoarthrosis of the hip, physical therapy and medication are generally less effective and surgery is usually recommended. Which surgery should be chosen for young patients? This needs to be considered from several aspects, both in terms of the severity of the hip lesion and many factors such as the patient’s age, gender, nature of the disease and requirements. Generally speaking, for patients with congenital hip deformity leading to osteoarthropathy, such as those with severe joint pain, insignificant joint movement restriction and less bone growth, hip osteotomy surgery can be chosen; for patients with severe bone growth, severe joint movement restriction and physical work, hip fusion surgery can be chosen; for patients with systemic diseases such as rheumatism, lupus erythematosus, etc. causing femoral head necrosis secondary to osteoarthropathy. Patients with systemic diseases such as rheumatism, lupus and other osteoarthrosis secondary to femoral head necrosis can choose artificial joint replacement surgery as appropriate. It is recommended that you go to a regular hospital for further diagnosis to choose a suitable treatment plan for yourself.