The presence of left buttock soreness may be due to lumbar instability, lumbar disc herniation, lumbar spinal stenosis, or pear-shaped muscle syndrome. In general, the possibility of pear-shaped muscle syndrome is very high, which is due to the symptoms of edema and compression of the left sciatic nerve at the inferior foramen of the pear-shaped muscle, causing local exudation and adhesions, resulting in blockage of the left sciatic nerve conduction. The common symptoms are local pain, lower limb soreness, numbness and left buttock soreness, which can be relieved by physical therapy, massage, tui-na, acupuncture, with topical blood circulation and nerve nourishing drugs. If there is no relief within a short period of time, you must go to a regular hospital in time to improve the necessary auxiliary examinations and choose a more reasonable treatment method after a clear diagnosis, so that the symptoms of left buttock soreness can be relieved in a timely and effective manner.