Microwave ablation of thyroid nodules includes radiofrequency ablation and laser ablation, the principle of which is to destroy thyroid nodules through the principle of heat, the advantages and disadvantages of which are as follows: 1. Advantages: treatment is given through the skin by puncture needles, just like spanking needles, the skin only leaves the eye of the needle and does not leave scarring. At the same time the scope of treatment is very limited, only for the nodules, the surrounding thyroid tissue will not be destroyed, can retain the function of the thyroid gland, to avoid the patient later long-term medication. Therefore, the biggest benefits of microwave ablation of thyroid nodules are no scarring, preservation of thyroid function, and very little trauma. The ablation can be done under local anesthesia, the patient is awake and can communicate normally, the trauma is minimal, the recovery is fast, and the patient is usually hospitalized on the same day and discharged on the same day or the next day; 2. Disadvantages: If the nodule is large, there may be residue in one ablation and a second ablation is needed. The nodules are not taken out immediately, but only the necrosis is coagulated and the blood supply is destroyed, and then the absorption is completed slowly through the body, and the absorption needs a process, sometimes there is still a lump in the neck after it is done, and the absorption starts slowly only after 2-3 months.