Does the so-called “minimally invasive” surgery leave residual tumor tissue, is open surgery more thorough, and how do I choose the resection method? The advantage is that the incision is small, only 0.3-0.5cm. The main disadvantages are: 1. Open surgery can remove the tumor at one time, but rotary knife has to remove it in several times; 2. Open surgery can remove the tumor completely, but rotary knife has to remove it in several times; 3. Open surgery only removes the tumor under direct vision, while the rotary knife inevitably injures the surrounding normal glands; 4, open surgery can be removed regularly, while the rotary knife removes irregularly with one knife on the left and one knife on the right; 5, open surgery can guarantee the removal of the whole tumor and no residue, while the rotary knife is difficult to guarantee no residue because of partial removal; local bleeding; especially repeated rotary cutting, the remaining small amount of tumor may be difficult to be detected by ultrasound, so it is difficult to guarantee no residue. It is difficult to guarantee that there is no residue; whether this residue may be the cause of postoperative recurrence needs further observation and research; open surgery can effectively stop bleeding under direct vision, while for rotary incision, the incidence of postoperative hematoma is high. Therefore, in addition to the small incision, the rotational surgery may be more traumatic than open surgery, and it is difficult to achieve “minimally invasive”; it is just a “micro-entry” and small incision. Of course, if it is a clear fibroadenoma of 1.0-2.0cm, with clear ultrasound and very concerned about the size of the incision, especially if you meet with a skilled and experienced surgeon, you can consider doing McMurdo spinotomy; in addition, for multiple fibroadenomas, you can choose McMurdo spinotomy to avoid excessive incisions. The incision of open surgery is usually determined according to the size and location of the tumor. Generally, doctors will use the incision in the areola or the outer edge of the breast, the lower edge and other hidden places, but specific problems should be analyzed. However, if the patient is scarred, both minimally invasive and open surgery will leave scarring.