Menstrual flow time is not recommended to drink tea, tea are rich in tannic acid, tannic acid can be combined with iron, calcium, etc. and affect the absorption of nutrients, easily lead to nutrient deficiencies in the female body. Menstruating women are prone to iron deficiency anemia due to blood loss during menstruation, if drinking tea during menstruation affects iron absorption will increase the chances of suffering from iron deficiency anemia, according to the actual situation can consider drinking tea with pharmacological effects, such as rosehip tea. For women with low menstrual blood volume and poor menstrual discharge during menstruation, drinking rose tea in moderation can promote the discharge of menstrual blood through its effect of activating blood circulation and dispersing stasis, which has a certain therapeutic effect on women with low menstrual blood volume and stagnant menstrual blood. The tea does not contain tannic acid will not affect the absorption of iron and does not induce or aggravate iron deficiency anemia.