The decrease of menstrual flow in the bath during menstruation may be due to the decrease of menstrual flow caused by the room temperature being too low during the bath, or the water temperature being too cold, and the lack of attention to keeping warm after the bath. Some women are also accompanied by symptoms of dysmenorrhea, you can brown sugar water orally, can play the role of blood circulation, promote the timely discharge of menstrual blood, but also to warm the stomach. So during the menstrual period bath, to master the appropriate water temperature and room temperature, after the bath, quickly wipe the water on the body with a dry towel, and the water in the hair, pay attention to keep warm. In the period bath, we should pay attention to avoid the time of the peak of the menstrual period, the most menstrual amount of time, other times can take a bath, the amount of menstruation is particularly large time, try not to take a bath.