You can drink barley and red beans during menstruation for the following reasons: First, women will have more blood loss during menstruation, the body of women is loss, in a way will promote the bone marrow to make more blood, the manufacture of blood needs to be based on substances, barley and red beans porridge is a good tonic, porridge is rich in iron as well as calcium vitamin E, which is conducive to improving the body’s hematopoietic function. It is very beneficial to drink barley and red bean porridge during menstruation. Second, barley and red bean porridge can enhance the body’s resistance, which is very important during women’s menstruation, because during menstruation is accompanied by the shedding of the endometrium and the slow formation of new endometrium, the endometrium shedding loses its protective effect on the deep tissue of the uterus, which makes the uterus susceptible to infection by external bacteria or its own parasitic bacteria. The barley and red bean porridge can increase the body’s resistance, or immunity, so that women are protected from bacterial infections during menstruation.