Patient: Description (onset time, main symptoms, hospital visited, etc.): Onset time: 8-10 years Main symptoms: Sitting on a hard bench for more than 2-3 hours, strolling on the road for more than half a day, or sitting for a long time, wet and rainy weather, the hip joint area and knee joints will have soreness and pain because grandmother and mother have rheumatoid arthritis, so it has been thought to be hereditary arthritis, and the pain was not so strong before. The pain in the hip joint suddenly intensified this month, and directly linked to the entire back leg tendon pain, hip skin and outer calf, back of the foot and toe skin pain, numbness for a week did not improve, so went to the orthopedic department of the Long March Hospital spine specialist clinic diagnosis: blood tests, ruled out rheumatism and arthritis symptoms, MRI also ruled out the lumbar spine damage or mutation symptoms, the doctor said the doctor said that the rheumatism and arthritis symptoms. The doctor said that if the pain has been there for many years, it should be a problem with the sciatic nerve itself and suggested to see a neurologist. Now the pain continues, basically I can’t sit, and it hurts even after standing for a long time. I would like to know what other causes of such symptoms could be caused if rheumatism and herniated lumbar disc compression are excluded (the pain history is more than 8 years). Zhang Jianxin, Department of Orthopedics, Xiamen Hospital of Traditional Chinese Medicine: In addition to lumbar disc herniation and lumbar spinal stenosis, sciatica can also be caused by pear-shaped muscle syndrome, i.e. numbness and pain caused by compression of the sciatic nerve by the pear-shaped muscle lesion in the hip. Or see orthopedics.