1.What is minimally invasive breast surgery? Minimally invasive breast surgery is a new surgical technique developed on the basis of modern minimally invasive surgical theories and the maturity of lumpectomy methods. It integrates the advantages of traditional surgery, lumpectomy and plastic surgery techniques, and is an important advancement in breast surgery technology in recent years. 2.What are the surgical methods of minimally invasive breast surgery? In a broad sense, minimally invasive breast surgery includes: (1) breast ductoscopy without scar; (2) breast hidden scar lump rotational excision; (3) breast lumpectomy (breast lumpectomy) and other surgical methods. Among them, breast lumpectomy has the most scope of treatment and surgical methods, and basically all traditional breast surgeries can be done through breast lumpectomy except for breast cancer extended radical surgery. 3.What can minimally invasive breast surgery do? (1) Ductoscopy allows direct visual observation of lesions in diseased ducts, tissue biopsy and precise localization of diseased ducts, etc.; (2) Mastectomy is mainly for more thorough excision and tissue biopsy of smaller breast masses; (3) Breast lumpectomy covers almost all traditional breast surgeries with more than 10 types of procedures in four categories, including: benign breast diseases; breast cancer lymph node metastases pre-cancerous breast lesions and breast cancer; breast reconstruction and reconstructive surgery, etc. 4.How is the effect of minimally invasive breast surgery? Can it be done thoroughly? Minimally invasive breast surgery has been clinically practiced and proven to be as effective as traditional surgery in treating benign diseases, and in some diseases, such as intraductal papilloma, minimally invasive surgery has better overall resection effect and better surgical thoroughness and accuracy (Figure). For malignant breast diseases such as breast cancer, minimally invasive breast surgery is even better in terms of accurate diagnosis and surgical treatment of early stage cancer. Only for patients with advanced breast cancer who need to undergo extended radical breast cancer treatment, conventional surgery is still the first choice at present.