Breast cancer belongs to the category of “breast rock (similar to breast cancer)” in traditional Chinese medicine, generally amaranth is not used for the treatment of breast rock, and the efficacy of a single Chinese medicine is limited, the use of medicines need to be under the guidance of a doctor to match the use of. Amaranth is the dried above-ground part of the plant Amaranthaceae. It is sour in flavor and cold in nature. It belongs to the liver and large intestine meridians. It has the effects of clearing heat and detoxification (removing heat and toxicity from the body), cooling the blood and stopping bleeding (cooling and moisturizing the blood, preventing bleeding), and stopping dysentery. Amaranth can be used for fever and blood dysentery (dysentery caused by feeling heat and poison and seeing blood in the stool), carbuncle boils (sores mostly occurring on the limbs or face, with a small shape and deep roots, as hard as nails), eczema, salvia (acute infections that can be seen as reddening of the skin like paint), snake and insect bites, blood in the stool, hemorrhoids, and bleeding from a leakage of menstruation (excessive menstruation or more than one drop of menstrual flow). If the breast rock belongs to Liver Depression and Phlegm Congealment, it can be treated with ShenXingGuaBuAoSan and KaiYuSan; if it belongs to ChongRenDian Dysregulation, it can be treated with ErXianTang and KaiYuSan; if it belongs to ZhengZheng Deficiency and Toxicity Abundance, it can be treated with Bach Zhen Tang; if it belongs to Qi and Blood Deficiency, it can be treated with Ginseng Nourishing Glory Soup; and if it belongs to Spleen and Stomach Deficiency, it can be treated with SenLingBaiJuSan or LiZhongPill. It is recommended that patients use medication under the guidance of a doctor and do not take medication on their own to avoid delaying their condition.