With the popularization of routine medical checkups and the advancement of examination methods, as well as the increase in the importance people attach to them, more and more breast tumors have been given the opportunity for early detection, early diagnosis and early treatment. Among them, the most common ones among young women of reproductive age are various benign breast tumors, which mainly include cysts, adenofibromas, intraductal papillomas and so on. For these benign tumors, the main treatment method used in the past is traditional open surgery, which has the main disadvantages of large incision, postoperative scar affecting the aesthetics, relatively obvious intraoperative pain, and large damage to the milk ducts. Fortunately, we now have another option that can improve the above problems and defects, which is the “minimally invasive mastectomy” that we are going to introduce to you. I. What is the difference between minimally invasive surgery and traditional surgery? Small incision: Only 2-4mm incision is needed to remove the mass, the incision is hidden, the scar is small, no suture is needed, only a small band-aid is used to cover the wound to heal, and the postoperative effect on the appearance of the breast is minimal; less pain: minimally invasive surgery, using local precise injection anesthesia under image guidance, the effect is good; less injury: especially for deeper masses, traditional surgery often requires cutting through the superficial breast The minimally invasive surgery does not need to destroy the superficial glands, but to reach the lesion under the guidance of ultrasound and other imaging means to complete the excision; the scope is small: since minimally invasive surgery is performed under imaging guidance, in principle, any lesion that can be seen on the image can be excised, and it does not have much to do with whether it can be felt or not, and for multiple benign For multiple benign masses, multiple masses can be removed by the same incision, which cannot be done by traditional surgery; fast recovery: minimally invasive surgery only requires pressure bandaging for 24-48 hours after surgery, which does not affect normal activities. Zhou Jun, Department of Breast Surgery, Hangzhou First People’s Hospital II. Who are suitable for minimally invasive surgery? Patients with small breasts and large lesions; patients with lesions located in superficial parts of the nipple areola area, near the axilla or chest wall, whose masses cannot be easily removed completely, and those who may have side injuries; patients with combined serious cardiovascular, cerebrovascular, liver and kidney diseases; patients with abnormal coagulation function; patients in menstruation, pregnancy and lactation, and patients with breast implants or suspected breast hemangioma are not suitable for minimally invasive surgery. Minimally invasive surgery. Conditions suitable for minimally invasive surgery: the maximum diameter of the lesion does not exceed 3 cm; the distance to the nipple and axilla is appropriate; and the lesion is considered benign on clinical palpation and imaging. Among them, for patients with microscopic masses visible on imaging but not palpable on palpation, and for patients with multiple masses in different quadrants of the breast, minimally invasive surgery is more advantageous than traditional surgery, and sometimes even the only option. Minimally invasive surgery is a sterile surgery with less damage and low probability of infection. Depending on the patient’s condition, the size of the surgical wound, the operation time and the presence of intraoperative contamination, oral antibiotics are taken for 1-3 days to prevent infection as appropriate. Patients will have a certain degree of pain within a few days after surgery, mostly caused by pressure bandaging, the pain is mild and does not need to be treated. In addition, some patients may have pain in the operated area within 3-6 months after surgery, mainly pinprick-like pain, which may be caused by surgical injury to peripheral nerves or hematoma absorption process, and can be relieved by means of hot compresses and physiotherapy. Histopathological examination is the only means to confirm the diagnosis of the disease, so patients should take the pathology report and submit it to the doctor for review on time. If there is no special abnormality, the ultrasound of both breasts should be reviewed six months after surgery to check the postoperative recovery and whether there is any recurrence.