Drinking sliced yam in water has certain effects of tonifying the spleen, nourishing the stomach, generating fluids, benefiting the lungs, tonifying the kidney and astringing the essence. Yam is sweet and flat in nature and belongs to the lung, spleen and kidney meridians. It has the effect of tonifying the spleen, nourishing the stomach, generating fluids, benefiting the lungs, tonifying the kidney and astringing the essence. Yam is often used in the treatment of spleen deficiency with little food, prolonged diarrhea, lung deficiency with wheezing and coughing, kidney deficiency with spermatorrhea, dyspareunia, dysuria, deficiency heat and thirst. The use of the drug should be noted that the adverse reactions and contraindications of the drug are not clear, but it should be noted that people who are allergic to yam tablets should not use it. At the same time, patients with diabetes are not suitable for use. The use of yam tablets in water is relatively limited in its efficacy and cannot be used as a substitute for medication in the treatment of diseases. If necessary, it is recommended to go to a regular hospital, under the guidance of a professional physician to identify the treatment, not to take on their own, so as not to delay the condition.