Thyroid nodules are a potential hidden danger. Firstly, the larger the nodule grows the easier it is to compress the trachea and affect the function of the lungs. Secondly, when patients are under stress and endocrine system disorders, the thyroid gland will develop sterile chronic inflammation, and the genes of malignant cell tissues are easily activated by this inflammation. On this basis, benign nodules are highly susceptible to malignant transformation into malignant tumors, which can be life-threatening when distant metastasis of cancer cells occurs. Therefore, patients with thyroid nodules must have regular follow-up and timely removal if necessary. Indications for the new technology 1. benign thyroid nodules 2. postoperative lymph node recurrence of thyroid cancer 3. some early imaging papillary thyroid cancer without lymph node metastasis Our ultrasound ablation technology for benign thyroid tumors is a new technology first carried out in the three northeastern provinces. It is very effective in the treatment of benign thyroid tumors (single and multiple) and postoperative lymph node recurrence of thyroid cancer, and it does not damage the function of the thyroid gland and leaves no scar on the neck, so it is very popular among patients. Ultrasonic ablation technology is an ultra-minimally invasive treatment method, in which a 1.6 mm diameter ablation needle is used to reach the lesion directly through the epidermis of the neck, and the local energy is generated instantly at the tip of the needle to inactivate the swelling in situ without any harm to the human body. The body itself has a “scavenger”, and over time, the dead swelling will be gradually swallowed up and eventually disappear completely. More than 70% of patients with thyroid nodules treated with the new technology do not have any scars on the thyroid area at the time of review, which means that the ablated masses are completely absorbed by the body. Treatment advantages The advantages of the minimally invasive treatment technique are mainly in the following aspects: 1. The minimally invasive treatment technique causes minimal damage to the thyroid gland and has no effect on thyroid function in particular; 2. Skin scarring caused by open surgery can be avoided; 3. It provides a means of retreatment for patients who have recurred after removal of benign thyroid nodules. Benign thyroid nodules are often multiple and prone to recurrence after surgery. Adhesions, scarring and anatomical disorders caused by the first surgery make it difficult to perform surgery again and complications increase significantly; 4. Provide a feasible means of treatment for microscopic thyroid nodules. With the advancement of high-frequency ultrasound technology, more and more microscopic thyroid nodules (millimeter level) that are difficult to clinically palpate can be detected. Minimally invasive treatment techniques can treat tiny thyroid nodules that are inoperable due to difficulties in locating the lesion during surgery; 5. Make it easy to retreat those who have recurred after surgical removal of thyroid cancer. Recurrent cancer foci often appear in residual glands or in lymph nodes adjacent to large blood vessels in the neck after surgical resection of thyroid cancer. The new technology has local in situ inactivation means that can be repeatedly performed, among which microwave and radiofrequency thermal ablation treatments are the most reliable and safe.