There are several possibilities for menstrual cramps: First, acute inflammation, such as cervicitis, vaginitis, endometritis, can lead to women’s menstrual cramps, because when there is inflammation, the exudate material of inflammation and bacterial secretion material can stimulate the sensory nerves of the skin mucosa of the corresponding lesion site, during menstruation the body is in a sensitive state and reacts more quickly to stimulation, if suffering from inflammation in menstruation it is very It is easy to cause dysmenorrhea. Secondly, it is caused by the weakness of the body. According to Chinese medicine, if a woman is weak and has a deficiency of qi and blood, the qi will not be able to control the blood, and the blood circulation will be stagnant, and the blood will not flow out from the vagina in time during menstruation, forming local blood stasis, which can also cause dysmenorrhea.