You can drink Chinese yam during pregnancy. Huai yam has the effect of tonifying the spleen and nourishing the stomach, generating fluid and benefiting the lungs, tonifying the kidney and astringing the essence, and can be used to treat spleen deficiency with little food, prolonged diarrhea, lung deficiency with wheezing and coughing, kidney deficiency with spermatorrhea, diarrhea, urinary frequency, and deficiency heat and thirst. This product is sweet and flat, not only can replenish qi, but also can benefit yin, belonging to the lung, spleen, kidney meridian, the role of calm, tonic but not stagnant, nourishing but not greasy, for the flat tonic San Jiao agent, and a little bit of astringent, can be used to treat the spleen and stomach, weak, less food and loose stools (feces sparse and not shaped), tiredness and fatigue; lung deficiency, prolonged cough or wheezing; deficiency of kidney yin and essence of the soreness of lumbar and knee, dizziness and tinnitus and other diseases. This product has the effect of generating fluids and quenching thirst, and is suitable for the treatment of thirst due to deficiency of qi and yin, which is characterized by polydipsia, polyuria, polyphagia, lethargy, and body fatigue and weakness. The adverse reactions and contraindications of this product are not clear. After the appearance of discomfort should promptly seek medical attention, under the guidance of physician’s identification and selection of medication, not self-medication, so as not to delay the condition.