Huaishan is a commonly used Chinese medicinal ingredient for making soups. Its most important effect is to strengthen the spleen and stimulate the appetite. Other benefits include treating long-term diarrhea and dysentery, lung qi deficiency and dryness, lower limb weakness, thirst and frequent urination. In fact, Huaishan is a kind of yam. Since it has been said that the yam produced in the Huaihe River area has the best effect, "Huai yam" is used specifically to refer to the yam produced in the Huaihe River, and later it was shortened to Huaishan.