In recent years, with the skillfulness of laparoscopic surgical skills and the continuous development of laparoscopic surgical instruments, laparoscopic techniques have been widely used in thyroid surgery, such as laparoscopic thyroid goiter resection, lobectomy of one side of the adenoids, or large thyroid gland. Partial resection, or even total thyroidectomy + central cervical lymph node dissection. Compared with traditional open thyroid surgery, these procedures do not increase the number of postoperative complications and have small surgical injuries, fast recovery, and hospitalization time. They also have less surgical injury, faster recovery, shorter hospitalization time, and no postoperative surgical scarring on exposed body parts except for the cervical access route, which achieves a more satisfactory cosmetic effect. Establishment and maintenance of surgical space The first step in laparoscopic thyroid surgery is to establish a surgical space between the superficial cervical fascia and the thyroid gland, and to maintain this space for surgical operation by inflation (i.e., CO2 is injected into the artificial cavity in the neck and the pressure is maintained at 6~8 mmHg). Choice of surgical approach Lumpectomy thyroid surgery in our institution can be generally performed by a transthoracic breast approach. A 1.0 cm incision is made to the right of the bilateral nipple line at the level of the anterior sternum. A 5-mm curved incision is made at the upper edge of the right and left areola, and a 5-mm puncture tube is inserted as the operating hole. The advantages of this method are: (1) the operation space is larger, and larger diameter goiter can be removed. (2) Bilateral thyroid lesions can be treated simultaneously. Indications for surgery (1) Thyroid adenoma. (2) Thyroid cysts. (3) Nodular goiter (single or multiple, preferably <5 cm in diameter). (4) Isolated toxic thyroid nodules. (5) Thyroid cancer without neck lymph node metastasis. Absolute contraindications to surgery (1) History of previous neck surgery. (2) Huge thyroid mass (diameter >5 cm). (3) Rapidly developing malignant tumor with extensive lymph node metastasis. Relative contraindications to surgery include: (1) previous history of radiation therapy to the neck. (2) Thyroiditis. (3) Hyperthyroidism. However, with the skillfulness of surgical skills and the continuous improvement of laparoscopic surgical instruments, the concept of contraindications to surgery has become more and more blurred, and those previously considered absolute contraindications to laparoscopic surgery have been gradually changed into indications and relative contraindications. Successful resection of benign thyroid nodules with a diameter of 7.4 cm (>5 cm) has been reported in the literature. It has also been reported in the literature that malignant thyroid tumors can be successfully treated with total thyroidectomy and cervical lymph node dissection under laparoscopy. Lumpectomy has been proven to be a safe and feasible new surgical procedure in the past decade, and the range of indications for the procedure has been gradually expanded to include thyroid adenomas, nodular goiter, hyperthyroidism with less than II degree of thyroid enlargement, and some early stage of low-grade malignant thyroid cancers, etc. The procedure includes total thyroidectomy for benign thyroid nodules and cervical lymphatic dissection for malignant tumors. Surgical options include thyroid goiter resection, lobectomy of one side of the gland, bilateral subtotal resection, total resection, and central cervical lymph node dissection. That is to say, most of the traditional open thyroid surgeries can also be successfully accomplished under laparoscopy with no increase in postoperative complications over traditional open thyroid surgery. In addition, there is less injury, quicker recovery, shorter hospitalization and no postoperative surgical scar on the exposed parts of the body except for the cervical access route, which results in a more satisfactory cosmetic effect.