For the buttock pain that appears on the bench, mainly seen in two reasons: First, a long time sitting on a hard bench, it will lead to excessive extrusion of the skin and soft tissue at the bottom of the buttocks, especially after a long time sitting on a hard bench, it is easy to lead to skin, soft tissue extrusion edema and pain. The bursitis of the sciatic tuberosity is also associated with prolonged sitting, resulting in the bursa of the sciatic tuberosity being repeatedly squeezed and rubbed, thus causing inflammatory edema and pain in the bursa of the sciatic tuberosity, and when pressed at the tip of the buttocks, it also tends to be obvious pressure pain, and after a serious period of time, it also tends to lead to increased leakage of fluid from the bursa of the sciatic tuberosity, thus causing the formation of cysts in the sciatic tuberosity. The situation of cyst formation in the sciatic tuberosity.