Breast nodule belongs to the category of breast nucleus in Chinese medicine, and the treatment of breast nodule is based on the main principle of dispersing the liver and dispersing the nodules, and the commonly used Chinese herbal prescriptions are Easy San and Chai Hu Liver Dispersing San, etc. 1. 1. Free San: mainly composed of licorice, angelica, poria, peony, atractylodes macrocephala, and chaihu, its efficacy is to relieve the liver of depression (treating depression by unblocking the liver’s qi), nourishing blood and strengthening the spleen, and it is commonly used in the treatment of pre-menstrual tension and lobular hyperplasia of the mammary glands. The adverse effects and contraindications of this formula are not clear. 2. Chai Hu Shun Liver Essence: mainly composed of Chen Pi, Chai Hu, Rhizoma Ligustici Chuanxiong, Xiang Fu, Citrus aurantium, Paeonia lactiflora, etc. Its efficacy is to relieve the liver and depression, and to move qi to alleviate pain (relieving pain by regulating the qi of the body). This formula is often used in treating breast hyperplasia, breast nodules, etc. which are caused by liver depression and Qi stagnation. Adverse effects and contraindications of this formula are not known. It is recommended that patients with breast nodules should seek medical consultation in time and under the guidance of doctor.