The use of hot water bags on the stomach during menstruation depends on the situation. If a woman has reduced menstrual flow and has dysmenorrhea, lower abdominal pain, etc. during menstruation, you can use a hot water bag on the stomach to increase the amount of menstrual blood and to relieve the lower abdominal pain. If a woman in the menstrual period is already more menstrual volume, prolonged periods and accompanied by more blood clots, it is not possible to use hot water bags hot compresses on the stomach, so as not to lead to more menstrual volume and lead to anemia and weakness of the body. Therefore, whether women use hot water bags to compress their stomach during menstruation should be decided according to their own physical condition and blood volume. Women should pay attention to proper rest during menstruation, avoid cold and strain, but also to maintain a relaxed mood, do not eat cold and spicy stimulating food.