The three types of yin and yang imbalance are yang and yin deficiency, yin and yang deficiency, and yin and yang deficiency. Yin and yang imbalance is also known as yin and yang bias. The human body inside and outside, inside and outside, up and down the parts of the body, as well as between the material and functional, must always maintain a relative relationship between yin and yang coordination, in order to maintain normal physiological activities. The occurrence of disease and its pathological process is the result of various reasons leading to the loss of coordination between yin and yang in the body. Yin deficiency refers to the lack of yin fluid in the organism, yin does not control yang, there is a deficiency of internal heat, the clinical manifestations of the five heart heat (the heart of the two hands and the heart of the two feet, and consciously feel the heart and chest heat), bone vapor tide heat (a burst of heat, feel the heat from the bone to the outside of the penetration of the heat), night sweating (abnormal sweating after going to sleep, waking up sweating stops), dry throat, zygomatic red (cheeks and zygomatic bone reddish in color). Yin and yang deficiency refers to the deficiency of yang energy in the organism, yang does not control yin, and yin is relatively hyperactive, with the clinical manifestations of fear of cold, preference for warmth, preference for hot beverages, abdominal pain, preference for warmth and pressure, not drinking much water, loose stools, and long and clear urination. Yin and yang deficiency refers to yin damage and yang or yang damage and yin, and ultimately both yin and yang are deficient, clinical manifestations are: fear of cold limbs and cold, tiredness and weakness (fatigue and weakness), spontaneous sweating (involuntary sweating during the day, sweating is aggravated by the slightest movement), night sweating, and five heart heat. If you have a related condition, it is recommended to be treated under the guidance of a professional physician, and not blindly self-medication.