During menstruation, women can do small abdominal hot compresses, because of the low level of sex hormones, so the pelvic congestion is obvious, there will be lower abdominal cramps, such as poor blood flow, menstrual blood discharge difficulties, but also cause uterine distension and pain, appropriate hot compresses can promote blood circulation, so that the smooth discharge of menstrual blood, to a certain extent, to relieve the abdominal discomfort during menstruation symptoms. The defense ability of the female reproductive system is reduced during menstruation, such as chronic pelvic inflammatory disease, easy to acute attacks during menstruation, abdominal pain, diarrhea and menstrual blood with odor, and even fever and other symptoms, the line of abdominal hot compresses, can promote the absorption of inflammation, such as symptoms should be obvious on the basis of the use of antibiotics, with abdominal hot compresses or physical therapy, in addition to severe dysmenorrhea patients, the line of abdominal hot compresses can also relieve the uterus too strong In addition, in patients with severe dysmenorrhea, applying heat to the abdomen can relieve the strong contraction of the uterus and reduce the symptoms of menstrual pain.