Traditional breast cancer surgery is a complete mastectomy with axillary lymphatic drainage, and the full, firm and elastic breasts will no longer exist after the surgery. As a result, most patients suffer from different degrees of psychological impact. Feelings of inferiority, loss and social abandonment haunt them for the rest of their lives. Some of them even suffer from depression and even take the extreme path. For this reason, generations of surgeons have explored and worked for a century to improve their medical techniques. In the last 20 years, breast-preserving surgery has become widely available worldwide. With the popularity of breast self-examination, more and more breast cancers are now being detected at an early stage, which not only allows breast cancer patients to survive significantly longer, but also allows a significant proportion of breast cancer patients to preserve their breasts, thus allowing them to maintain their sex appeal and confidence.