The main reasons for the soreness of the buttock muscles of anal lifting include physiological reasons and pathological reasons. 1. Physiological reasons: the most common reason for buttock muscle soreness caused by anal lifting exercise is the anaerobic metabolism of the muscles due to excessive exercise, which produces a buildup of lactic acid and stimulates the nerve roots, resulting in symptoms of muscle pain. For example, long-term running, large exercise fitness and so on. Generally, most of these conditions are self-healing, without special treatment, and can be relieved over time. 2. Pathologic causes: common diseases include pyriformis syndrome, lumbar disc herniation and so on. It is mainly caused by the stimulation of sciatic nerve compression or excessive pulling. When lifting the anus, the gluteus maximus muscle and the pyriformis muscle will produce contraction, and when the sciatic nerve itself is jammed or excessively pulled, there will be pain in the buttocks. There may be other reasons for the soreness of the buttock muscles, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.