The harm of minimally invasive surgery for breast cysts is relatively small, but there may be infection in the surgical area or improper postoperative care, which may cause recurrence of infection or incomplete removal of the cyst wall. 1. Surgical area infection: when breast cysts are removed by minimally invasive surgery, it is necessary to remove the cysts completely to avoid rupture of the cysts in the process of removal, and if rupture occurs, it may cause infection in the surgical area. 2. Postoperative infection: Minimally invasive surgery is generally a relatively small wound, but the minimally invasive rotary cutter may also damage the skin, resulting in too large a wound. If the postoperative care is not appropriate, it is easy to have postoperative wound infection. 3. Cyst recurrence: the process of breast cyst removal requires complete removal of the cyst, if the cyst wall is not removed completely, there may be a possibility of cyst recurrence in the later stage. The probability of the above minimally invasive surgery for breast cysts is relatively small, and it is recommended that patients relax, do not be anxious, and actively cooperate with the doctor for treatment.