Early stage of breast cancer can be manifested as eczema-like changes of breast skin, or local inflammatory reaction, and some patients have skin edema, because breast malignant tumors can easily involve subcutaneous lymphatic ducts or milk ducts, as well as the suspensory ligament of the breast. Nipple eczema-like breast cancer manifests as nipple overflow, or eczema formation on the areola skin, in which case early surgical treatment should be chosen. In addition, patients with breast cancer are prone to lymphatic metastasis, and patients with occult breast cancer may show enlarged lymph nodes in the armpit or localized inflammatory reaction of the skin. The cause of breast cancer is related to the imbalance of estrogen and progesterone in the body, so patients also need endocrine treatment after surgery.