During menstruation, stomach pain occurs after eating crabs, mainly because crabs belong to cold food, especially crab legs, which belong to the big cold food. If you eat cold food during menstruation, the possibility of menstrual cramps will occur. Therefore, women should pay special attention that they should not eat cold foods during menstruation, such as barley, winter melon, watermelon, pears and bananas, which are cold foods and may cause stomach pain if they eat them accidentally. During menstruation, in addition to keeping warm, every day also drink a bowl of hot brown sugar water, not only can replenish physical strength, but also can make the menstrual blood flow more smoothly, reduce the lower abdomen due to menstruation caused by the uncomfortable situation, but also have the effect of replenishing blood.