The vast majority of women have relatively thick fat on the abdominal wall, and the fat has the effect of dissipating heat. So when you touch the lower abdomen with your hand in daily life, it will feel cooler than other parts of the skin. So if your stomach is cooler than ever during menstruation, it is best to use a hot water bag to promote local blood circulation and speed up the metabolism, which will also make the menstrual blood flow more smoothly, change the symptoms of discomfort in the lower abdomen during menstruation, and also improve the symptoms of a cool stomach during menstruation. Suggestions in the time of menstruation, 1, do not drink frozen drinks; 2, in the clothing must pay attention to warm, according to the weather increase or decrease in clothing; 3, every day with hot water to give foot bath will be strong and healthy, and to reduce menstrual cramps caused by menstruation.