Minimally invasive treatment of breast tumors, i.e., vacuum-assisted mass rotation under the guidance of ultrasound or mammography, etc. In China, it is mainly performed with Johnson & Johnson’s McMurdo vacuum-assisted biopsy system, also known as McMurdo’s procedure. It is performed by puncturing the rotary cutter to the underside or lateral side of the tumor and removing the tumor by vacuum-assisted sector-by-sector type. Indications: It is mainly for benign tumors under 3 cm, especially for suspicious lesions that are multiple, inaccessible and difficult to remove by conventional surgery, and can be accurately removed under ultrasound or mammography guidance, in addition to biopsy of suspicious lesions. The treatment of such lesions has the advantages of rapid, minimally invasive, less painful, and less postoperative scarring. Are there residuals from minimally invasive surgery? Patients who undergo minimally invasive surgery are often worried that they cannot be completely removed. According to the experience of doctors in our hospital and in China, for smaller tumors that can be completely removed during minimally invasive surgery, the treatment results are better. However, for larger tumors over 3cm, the chance of residual tumors will increase after surgery. If the patient does not have special requirements, we should try to avoid it. Does minimally invasive surgery affect breastfeeding? There is no need to worry about the effect of minimally invasive surgery on breastfeeding. Generally, except for the masses in the areola area, minimally invasive surgery does not affect breastfeeding much. For active solitary fibroadenoma with good activity in the central region of the breast and ultrasound suggesting intact envelope, open surgery may cause less damage to the milk ducts; while minimally invasive surgery is recommended for breast tumors with poor activity and incomplete envelope, which can be removed accurately and cause similar or less damage to the surrounding breast tissue than normal surgery. It is recommended to consult a specialist in minimally invasive breast surgery at the outpatient clinic to decide the surgical procedure according to the actual situation. Will there be local tumor spread after minimally invasive surgery? If the postoperative pathology is confirmed to be malignant, there will be no local implantation and metastasis, which patients are worried about. We will consider the incision site during surgery, and if the postoperative pathology is confirmed to be malignant, including the puncture needle tract, incision and tumor surrounding tissues can be completely removed, and no tumor will remain. The most common surgical complications of minimally invasive surgery are postoperative bleeding, hematoma and skin petechiae. Generally, postoperative bleeding can be avoided through postoperative pressure bandaging; most of the postoperative hematomas will be completely absorbed within six months to a year and will not affect the patient adversely; postoperative skin ecchymosis will disappear on its own after half a month to a month, so there is no need to worry too much. The healing process of minimally invasive surgery will generally form a small hematoma or seroma at the site of tumor removal, which will fill the minimally invasive postoperative cavity and will be gradually absorbed within half a year to a year, so the review time of minimally invasive surgery is recommended after half a year to a year, otherwise the ultrasound will find suspicious residual artifacts at the site of tumor removal.