Minimally invasive thyroid surgery is a lumpectomy of the thyroid lobe. Unlike the normal thyroid surgery approach, the minimally invasive approach is to make a puncture hole above the areola or in the bilateral axillae and create a subcutaneous tunnel all the way to the thyroid gland. The flap is then freed and the anterior cervical muscle is incised. Sutures may be needed to suspend the anterior cervical muscle and then completely free the thyroid gland on one side, and the recurrent laryngeal nerve needs to be exposed so that nerve damage can be effectively avoided during the procedure. The lobe of the thyroid gland is completely removed with an ultrasonic knife or ligasure, the wound is effectively hemostatic, and the wound is closed with sutures after a drain is placed.