It is possible to become anemic just after menstruation, but postmenstrual anemia is mostly related to factors such as one’s own physical condition or illness. Normally, a woman will have about 20-60ml of bleeding during her period, which is not enough to cause anemia. If the amount of menstruation is normal and the anemia is caused at the end of the period, it is likely that the anemia is caused by the woman’s own poor physical condition due to malnutrition, diseases and other factors, and it is not very much related to menstruation. However, if a woman suffers from diseases such as uterine fibroids, uterine fibroadenoma, atypical hyperplasia of the endometrium, etc., or symptoms such as endocrine disorders, which will lead to an increase in the amount of menstruation, or prolonged menstruation period, and there is a large amount of bleeding in the menstruation period, there is a possibility that anemia will be caused. If anemia occurs after menstruation, you should go to the hospital in time to do relevant examinations to clarify the cause and then treat it.