The cold, hot and cool properties of green tea and black tea belong to raw tea, whether it is Biluochun Longjing or Maojian tea that can be seen everywhere. According to the classification of TCM theory, raw tea is cold and cold, and it is cold and cold, while women avoid cold and cold during menstruation. If blood is warm, it will coagulate, that is, it will flow when it is warm and coagulate when it is cold. If the blood vessel is blocked, it will be bad. Then green tea and black tea are cold, and drinking them during menstruation is definitely unfavorable. Because of its nature, it is not that tea can be drunk, but that tea should not be drunk during menstruation. Freezing in the cold will lead to slower walking during menstruation, or blood clots and even dysmenorrhea. Of course, it doesn't matter if you drink it once or twice, but drinking it for a long time will definitely lead to poor health and will appear.