During menstruation, not only lower abdominal pain, but also low back pain, the most common clinical cause is due to the uterus in a retroflexed and tilted position. Because the uterus is in a retroflexed and retroverted position, it is relatively difficult to discharge menstrual blood, so the uterus has to contract so that menstrual blood can be discharged, and when the uterus contracts, it will lead to lower abdominal pain, and because the uterus is in a retroflexed and retroverted position, the pelvic cavity is in a congested state during menstruation, and the retroflexed and retroverted uterus will irritate the posterior peritoneum, which will also lead to low back pain. It is recommended to boil a bowl of hot brown sugar and ginger water and drink it to relieve menstrual cramps. In addition, you can also do hot compresses on the lower abdomen or lumbosacral region to promote local blood circulation and reduce stomach pain and low back pain.