The first day of menstruation blood volume is small, the second day of menstruation, the second day of menstruation is small amount of consideration caused by uterine cold, may also be in the menstrual period, angry, mental stress caused by bruising, can be under the guidance of the doctor to take Yi Mu Cao, biochemical particles and other blood-boosting drugs to regulate, you can also drink more brown sugar water, pay attention to abdominal warmth can improve the menstruation of small amount. Anemia can also cause low menstrual flow, routine blood tests, if anemic, you need to eat more blood food and drugs, such as eating Agaricus, Sulforaphane and other drugs can replenish blood, it is recommended to eat more animal liver, red dates and other foods. Endocrine disorders can also cause low menstrual flow. You can have your blood tested for hormone six, and under the guidance of your doctor, you can take estrogen supplementation drugs, such as Glivec, to promote endometrial thickening and increase menstrual flow. Pay attention to relaxation during menstruation, not to stay up late, not to eat cold food, but also need to pay attention to hygiene, so as not to catch cold or gynecological infection will affect the menstrual volume.