During the menstrual period can not drink herbal tea, in the menstrual period of women’s body function of each system will occur corresponding changes, for a variety of adverse stimuli more sensitive. Drinking herbal tea during menstruation is easy because the cold stimulation induces uterine contraction and affects the discharge of menstrual blood in the uterine cavity, so that the menstrual blood stays in the uterine cavity for too long, resulting in the color of menstrual blood black or cause obvious abdominal pain. Tea is rich in ellagic acid, which will combine with calcium, iron and other mineral nutrients in food to form a complex and affect the absorption of nutrients, time is easy to cause osteoporosis and iron deficiency anemia. Tea also contains theophylline on the central nervous system and the heart have a relatively strong excitability and easy to cause insomnia, panic, palpitations and other symptoms, for women’s health is not favorable.