An increase in the number of stools during menstruation is also normal. During menstruation, the endocrine influence may cause the posterior position of the uterus to stimulate the intestinal tract, causing an increase in bowel movements and an increase in the number of bowel movements. During menstruation, the lower abdominal organs, the uterus and pelvis are richer in blood flow, and other organs are also affected, which can lead to faster blood flow in the intestines and faster bowel movements, which can lead to an increase in the number of stools. When menstruation may lead to pelvic congestion and stimulation of the rectum, resulting in increased intestinal peristalsis, which will also affect the number of stools. So during the menstrual period the number of stools is also normal, if the stool appears other abnormalities do not exclude intestinal problems, we must go to the hospital for timely examination and timely treatment.