Patients with breast enlargement can eat yam. Eating yam will not induce or aggravate breast hyperplasia, and eating yam can also replenish nutrition. Yam has the effect of benefiting qi and nourishing yin (replenishing qi and nourishing yin), eating yam can replenish the spleen, lungs and kidneys, fixing essence and stopping the band, nourishing the stomach and generating fluids, and it is the main treatment for fatigue, diarrhea (diarrhea caused by weak spleen), frequent urination under the band, internal heat and thirst (internal heat accompanied by symptoms such as overeating, drinking and urinating), and coughing and asthma in lung deficiency. Attention to dampness in the fullness (too much dampness leads to fullness and discomfort in the spleen and stomach) or solid evil, stagnation is prohibited. Patients with breast hyperplasia should use yam under the guidance of a physician’s consultation to identify the evidence, and if eating yam or eating other medicines or food causes discomfort, they should consult a doctor in time.