With the awakening of self-awareness of health and the continuous improvement of medical technology, the number of breast cancer patients, especially the younger ones, is increasing. In order to eradicate the disease, patients must undergo surgery. In order to prevent recurrence and metastasis, surgery must be performed as many times as possible and as cleanly as possible. The “breast cancer patient must have her breasts removed” treatment has become so popular that many people believe that if they have breast cancer, they will lose their breasts. Mastectomy has always seemed to be the conventional way to treat women with breast cancer. However, for female patients, removing the breast will cause great physical and psychological trauma, but breast conservation is also worried that the cancer cells will not be removed completely, which will affect survival and recurrence. In fact, breast-conserving surgery for breast cancer was included in the surgical treatment guidelines recommendations as early as the 1990s. However, there was a time when most of the breast cancer patients in China were in the middle and late stages once detected, and only in the first-tier cities and areas with developed basic medical care could breast cancer be truly detected and treated early. Many patients with breast cancer, once detected, have already missed the best time for breast-conserving surgery; in clinical work, we have indeed seen those who want beauty over life and insist on breast-conserving regardless. Whether a breast cancer patient is really suitable for breast-conserving treatment needs to be judged by professional doctors, and the patient should generally meet the following conditions: 1. 3.Patients have the conditions (physical condition and economic condition) to receive postoperative comprehensive treatment including radiotherapy and long-term follow-up; 4.Consider the postoperative effect of appearance, evaluate the size of the tumor and its proportion to the breast, and those with full breasts are more suitable; 5.Patients have a strong subjective demand for breast conservation.