Breast-conserving surgery + postoperative radiation therapy has become the standard of care for early-stage breast cancer. A number of clinical studies have demonstrated that breast-conserving surgery can achieve the same results as traditional radical breast cancer surgery, so more and more breast surgeons are performing breast-conserving surgery instead of traditional radical surgery for early-stage breast cancer patients. However, in order to ensure the efficacy, excessive removal of breast tissue will seriously affect the appearance of the breast, and the deformation of the breast shape after surgery will affect the patient’s satisfaction with the procedure (traditional breast-conserving surgery) and hinder the implementation of breast-conserving surgery. In order to solve this problem, a new subspecialty, oncoplastic breast surgery, has been created. Recently, under the leadership of Dr. Chengcai Yao, the leader of our department, the Department of General Breast Surgery has opened this new technique —- for breast cancer breast tumor shaping and breast conservation surgery. It is to achieve the purpose of restoring breast shape through various forms of breast reduction remodeling after breast tumor removal depending on the location of the tumor. The common method is to fill the defect caused by breast tumor removal by pushing, transposing and folding the breast flap along the chest wall in order to avoid significant postoperative breast appearance defects. The application of this treatment modality not only significantly improves the quality of life of patients, but also constitutes an important part of modern comprehensive breast cancer treatment. While ensuring the treatment, it brings a blessing to the majority of breast cancer patients by ensuring the shape of the affected breast after surgery and changing the aesthetic shortcomings such as asymmetrical breast and distorted nipple after traditional breast-conserving surgery, which is well received by the majority of patients. The surgical method of breast tumor shaping breast-conserving surgery. Figure 1A shows the defective residual cavity formed after complete excision of the breast tumor and its surrounding 1~50px of normal breast tissue together with the pectoralis major muscle fascia; Figure 1B shows that after adequate freeing of the residual glands near the defect, the residual glands are rotated and sutured together with the nipple as the central axis (blue is the staining caused by the injection of melanin below the areola at the time of SLNB); Figure 1C shows that the dermal tissue flap of the ventral wall tissue of the inframamammary fold is folded and The dermal tissue flap of the inferior mammary fold is folded and turned to fill the defective area and the residual gland is sutured with interrupted buttress sutures. The arrow points to the location of the nipple. Preoperative incision design and postoperative breast shape in the same patient with mammary tumor revision mammaplasty. Figure 2A (tumor in the lower inner quadrant), C (tumor in the upper inner quadrant), and E (tumor in the upper inner and upper outer quadrant of the right breast, with simultaneous reduction of the left breast) show the preoperative incision design, and Figure 2B (7 days postoperatively, staining caused by injection of melanin when the upper blue color of the right breast is SLNB), D (10 days postoperatively, staining caused by injection of melanin when the upper blue color of the left breast is SLNB), and F (30 days postoperatively) show the postoperative breast appearance. ) are the postoperative breast appearance. After conventional breast-conserving surgery, the bilateral breasts are severely asymmetrical and the nipples are not at the same level; the left nipple is skewed, and the left outer lower quadrant of the breast is deficient causing collapse and other breast deformities.