There is basically no difference between fresh yam and dried yam in terms of their Chinese medicine effects, both of which are effective in tonifying the spleen, nourishing the stomach, generating fluid and benefiting the lungs, and tonifying the kidney and astringent essence. It’s just that dried yam loses more water than fresh yam, and the yam in Chinese herbal prescriptions is often dried, so if you use fresh yam instead of dried yam, the dosage should be relatively large. In addition, fresh yam has more water and is not good for storage. Yam, sweet in flavor and flat in nature. It belongs to the spleen, lung and kidney meridians. It is used for spleen deficiency with little food, prolonged diarrhea, lung deficiency with asthma and cough, kidney deficiency with spermatorrhea, dyspareunia, frequent urination, deficiency heat and thirst. Bran fried yam can replenish the spleen and strengthen the stomach, and is used for spleen deficiency with little food, diarrhea and loose stools, and excessive leucorrhea. It should not be taken by those who are suffering from dampness (too much dampness leading to fullness and discomfort in the spleen and stomach) or those who have solid evils or stagnation. If you need to take this medicine, it should be taken under the guidance of a doctor.