Patients with breast hyperplasia can take Colla Corii Asini. Breast hyperplasia is a common benign breast disease among young and middle-aged women, and its cause is believed to be closely related to the imbalance of estrogen, progesterone and prolactin in the human body. Clinical manifestations include breast swelling and pain with the menstrual cycle, even with the formation of lumps, and after the menstrual cycle, the breast swelling and pain as well as breast lumps can be relieved or even disappear. The main treatment is to let the patient relax, dredge the liver and regulate qi, and forbid spicy, greasy and stimulating food. As a kind of tonic, the main ingredients of Colla Corii Asini cake are Colla Corii Asini, walnut kernels, black sesame seeds, granulated sugar and other ingredients, which have the effect of detoxifying the liver and tonifying the qi, improving the body’s immunity, and won’t lead to hormonal imbalance of the human body, so patients with mammary gland hyperplasia can eat Colla Corii Asini.