If you experience anal cramping every time you have your period, and there is no lower abdominal pain in your daily life, and no lower abdominal pain during intercourse, this condition is often caused by an abnormal position of the uterus. For example, if the uterus is in retroflexion and retroclination, the uterus will become congested during menstruation and the pelvic cavity will also become congested, and the retroflexion and retroclination of the uterus will stimulate the retroperitoneum, causing anal cramping and pain in the lumbosacral area. It is advisable to take proper rest when menstruating, resting on your stomach can correct the retroflexion and retroversion of the uterus, so that the menstrual blood flows more smoothly, thus reducing the sensation of anal drop. In addition, you can also do moxibustion to promote local blood circulation, which will also reduce the occurrence of this situation.