The buttocks pain caused by prolonged sitting, the first thing to consider bilateral sciatic tubercle bursitis, gluteus fasciitis and other conditions, as follows: First, bilateral sciatic tubercle bursitis: this is mainly due to prolonged sitting, bilateral contact between the bones of the sciatic tubercle and the opposite side, which will cause the bursa below this bone to be subjected to more load and pressure, which over time will lead to bursal hyperplasia and bursal inflammation, therefore, manifested as bilateral A small painful sensation below the sciatic tuberosity. Second, gluteus fasciitis: this is also caused by sedentary, prolonged sedentary will lead to a state of high tension in the gluteal fascia, will cause strain and inflammation of the gluteal fascia, the main pain manifestation is diffuse in the hip bilateral, symmetrical and a large range of pain.