Menstruation that comes in smaller and smaller amounts, only 2-3 days, is considered to have a lot to do with the decline in estrogen levels in the body. A woman’s menstrual period normally lasts 3-7 days, with an average of 5 days, and the total amount of menstruation at one time ranges from 20ml to 60ml, while a period of less than 20ml indicates that the amount of menstruation is too small. If the amount of menstruation is too small and the duration is too short, it is considered to be related to the hormone level imbalance in the body, and it is necessary to go to the hospital to do the hormone six index examination, and if the level of estrogen is low, it is necessary to take estrogen medication for symptomatic treatment. The usual diet should be comprehensive, diversified, avoid partiality and picky eating, more supplement quality protein food, eggs, milk, lean meat, soy products, etc., you can supplement gelatin, deer fetus cream, etc., can also help to improve the situation of scanty menstrual flow.