Deficiency of fluid will mainly show symptoms such as dry skin, withered hair, little or no sweat, short urine, constipation, dry throat and thirst. Deficiency of fluid has more clinical manifestations, such as lips, skin, blood lost in the fullness of fluid moistening, see dry lips and thirst, dry skin, withered hair; insufficient fluid, sweat, urine lost its source of transformation, see sweat or no sweat, urination short; the large intestine lost its fluid moistening, conduction stagnation, see constipation. Deficiency of fluid can be used to improve symptoms by tonifying, nourishing and nourishing yin, etc. If the above symptoms occur, you should go to a Chinese medicine hospital in time for identification and standardized treatment under the guidance of a doctor, do not blindly self-medication.