Menstrual bloating is considered to be related to the following factors: First, the uterine pelvis is in a state of congestion during menstruation, the uterus will increase in size, pressing on the bladder and other organs, and the stomach can sometimes appear distended. Second, during menstruation, the body is weak and the gastrointestinal function is relatively tender, so if you eat gas-producing or flatulent food, it can easily lead to indigestion and bloating. Third, during the menstrual period, if the stomach is cold, sometimes there will also be flatulence. During the menstrual period, the diet should be light, with small and frequent meals to reduce the intake of gas-producing and flatulent food. You can apply hot compresses to the small stomach to avoid getting cold, which can also promote blood circulation and improve the bloating of the stomach.