Pain in the muscles of the buttocks may be caused by the following reasons: i. Trauma, such as sitting on a heavy object on the buttocks or sitting down on the buttocks, resulting in local muscle damage, congestion and edema, leading to pain. Second, if trauma is ruled out, it may be due to prolonged sitting and standing in daily life and prolonged sitting on heavy objects that the muscles of the buttocks are squeezed or rubbed for a long time, resulting in local congestion and edema, which may induce the occurrence of pain in the buttocks muscles. (3) It may be due to synovitis of the sciatic tuberosity, which may induce muscle pain. Fourth, it may be due to pear-shaped muscle syndrome, which triggers the occurrence of muscle pain in the buttocks of the patient.