4.3.1　Indication

Mainly for patients with the will to protect breast and no breast preservation contraindication.Tumor size belongs to T1 and T2 staging；breast has an appropriate volume，tumor-to-breast ratio is appropriate；early breast cancer patients who can maintain a good breast shape after surgery；breast preservation surgery for multifocal breast cancer；stage Ⅲ patients（except inflammatory breast cancer）who have preoperative chemotherapy or preoperative endocrine therapy after the reduction of the standard of breast-care surgery can also be carefully considered.(https://www.daowen.com)