There are several reasons for the symptoms of soreness in the left buttock: 1. It may be due to the nerve roots compressed by the lumbar disc herniation, causing obvious soreness and pain in the lower back or one side of the buttock. 2. It may be due to gluteal myofasciitis caused by strain and cold, resulting in spasm of the gluteal fascia and obvious symptoms of pain in the left buttock. 3. It may be due to pear-shaped muscle syndrome, which is related to sedentary or It is related to cold and strain, causing obvious edema and adhesion of the pear-shaped muscle, stimulating the sciatic nerve that passes through the pear-shaped muscle, causing edema of the sciatic nerve, resulting in soreness and swelling of the buttocks, and there will also be obvious pressure pain points. Therefore, after the symptoms of soreness of the left buttock appear, the patient should rest in bed and give topical anti-inflammatory and analgesic, blood circulation and stasis relieving drugs for topical symptomatic treatment. If the symptoms are not relieved within a short period of time, it is necessary to go to a regular hospital in time to improve the necessary auxiliary examinations and clarify the severity of the disease, so as to give reasonable treatment methods.