You can’t eat mung beans when you have menstruation because they are cold food. During menstruation, the body’s resistance is reduced, so if you eat cold food, it is likely to cause pain in the lower abdomen, cause dysmenorrhea or make the menstrual blood dripping. In addition, it is recommended to keep warm during the menstrual period. You can do hot compresses on the lower abdomen to improve local blood circulation, so that the menstrual blood flows more smoothly and reduce the discomfort in the lower abdomen caused by menstruation. You can also use hot water to soak your feet during menstruation to improve the symptoms of lower abdominal discomfort during menstruation through heat circulation. During menstruation, cold foods should not be eaten, such as barley, watermelon and dragon fruit, which may cause menstrual cramps if eaten.