Thirsty in the middle of the night.

There are three possibilities, the first is the constitution is biased to yin deficiency and heat, the body's own body fluid is in a relatively insufficient state, manifested as dry mouth and thirst after sleep, five upset heat, two zygomatic flushing, etc., need to supplement yin fluid, such as drinking more water or taking Chinese medicine treatment. The second is yang deficiency can not transpire the body fluid to the lips, so show dry mouth and thirst. There will also be drinking water can not relieve thirst, limbs cold, urine clear and long symptoms. The third is the situation of blood stasis, tongue or lip color purple, dark tongue vein tortuous expansion, drinking water can not alleviate thirst phenomenon. Specific circumstances or professional doctors to help judge.