It is not recommended to drink herbal tea during menstruation because herbal tea is cold and will slow down blood circulation and stimulate uterine contraction, which may lead to poor menstruation, dysmenorrhea, reduced menstrual flow, prolonged menstruation, amenorrhea and incomplete menstruation, and also cause symptoms such as physical weakness, spleen and stomach disharmony and blood stasis, Cold drinks and raw fish, watermelon, bananas, persimmons and grapefruit and other cold fruits are also not recommended. You should pay attention to warmth, eat warm, light food, and pay attention to a balanced nutritional intake, increasing the intake of protein-based foods and iron-rich foods to supplement the weakness caused by blood loss during menstruation, and also pay attention to rest, do not do heavy physical labor and strenuous activities, ensure sufficient sleep, and do not stay up late.