Back pain during menstruation is mainly related to the following factors: First, the pelvic cavity is congested during menstruation, resulting in a slowing of local blood circulation, so clinically back pain can occur. Secondly, during menstruation, the shedding of the endometrium leads to the release of prostaglandins. Due to individual differences, each woman has a different degree of sensitivity to prostaglandins, and when prostaglandin stimulation causes uncoordinated contractions of the uterus, it can also cause low back pain. Thirdly, during the menstrual period, if there was a chronic pelvic inflammatory disease in the past, this time aggravates the pelvic congestion, so there will also be low back pain. It is recommended to rest properly during menstruation, pay attention to warmth, do not eat cold food, can relieve the pain in the lower back, if necessary, you can do the lower abdomen and the lower back of the hot compress, through the blood circulation will also improve the symptoms.