2, causing ischemic anemia: phosphoric acid in soaking water causes iron not to be absorbed, and iron is very important to us. Iron causes the problem of ischemic anemia in human body, and also leads to insufficient hematopoietic speed. After a long time, it will cause anemia in girls, especially girls. Because of physiological reasons, it is more prone to ischemic anemia, and it is more prone to anemia when menstruation comes.