Six days after the removal of the uterus, a little bit of menstrual cramps when you have a bowel movement, may be caused by inflammation, endometriosis, not fully recovered from the operation and other reasons. 1. Inflammation: the purging operation will cause damage to the endometrium, six days after the operation, the damaged endometrium has not fully recovered, there may still be inflammation, and even some women will be due to the purging of the uterus will lead to the uterine cavity adhesion. When the pelvic muscles are in force during bowel movements, the rectum presses against the uterus, and pain in the lower abdomen occurs. 2. Endometriosis: after the purging surgery may cause endometriosis, when the woman in the menstrual period stool, hard defecation will produce pressure on the pelvic organs, resulting in a feeling similar to menstrual cramps. 3. Not fully recovered from the operation: the uterus is damaged after the purging operation, and there will be slight pain during uterine contraction, which may not be fully recovered from the operation, and it is a normal phenomenon, and there will be occasional pain when the abdominal pressure increases when straining to have a bowel movement, if it is within tolerable tolerance, there is no need to be tense, and the pain will gradually disappear with the uterus recovering. If the pain is obvious and persists, you should go to the hospital in time to do the relevant examination and treatment under the guidance of the doctor.