Breast disease is a common and frequently occurring disease in women, which seriously endangers women’s physical and mental health, and the incidence rate of breast diseases has been on the rise in recent years. Prunella vulgaris, as a traditional bulk medicinal material, is bitter, pungent and cold in nature. It has the effects of clearing fire, brightening eyes, detumescence and dispersing knots. It has a clear curative effect in the treatment of breast diseases. This article summarizes the etiology and pathological mechanism of breast disea...