Patients who use a tourniquet to stop bleeding are generally advised to relax once in about 20-30 minutes. Women with fibroids may need to have their fibroids excavated, which generally requires surgery to open the pelvic cavity and expose the uterus and then requires a tourniquet to compress the uterine artery around the lower uterine segment to reduce the blood supply to the uterus so that surgical bleeding can be reduced during the excavation of the fibroids, which facilitates the surgical operation and helps the recovery of the body after surgery to some extent. However, the tourniquet must be relaxed every 20-30 minutes or so to avoid causing the uterus to be ischemic for too long, which may affect the return of other pelvic organ functions and increase the occurrence of surgical complications. In conclusion, the use of tourniquet to stop bleeding by compression is a common surgical management method in uterine fibroid surgery and is widely used in clinical practice. The use of tourniquet to stop bleeding in other cases also generally requires relaxation once in half an hour to an hour to avoid causing tissue ischemia and hypoxia.