The small amount of menstruation and dark color indicate that congestion is not smooth. If the symptoms of small amount and dark color appear on the first day of menstruation, it is generally not affected. It is recommended to drink more brown sugar water to promote the discharge of menstrual blood. However, if the symptoms of small amount of menstruation and dark color appear throughout the month, you need to take medicine under the guidance of a doctor. Generally, you can take motherwort granules according to the doctor's advice, It can promote the discharge of menstrual blood, and can improve the phenomenon of stagnant blood. It is also necessary to check whether it is caused by cold in the uterus. If there is cold in the uterus, you can take medicine to warm the uterus under the guidance of a doctor. Warm keeping measures shall be taken during menstruation. Don't eat cold food. Drink more brown sugar and ginger soup, which can warm the menstrual cycle, warm the uterus, and promote the discharge of menstrual blood.