Ablation surgery is one of the common treatments for tumor lesions in clinical practice. Generally, ablation surgery may damage the surrounding normal cells and tissues, as well as vascular damage, nerve damage and other hazards, as follows: a. Damage to surrounding normal cells and tissues: ablation surgery kills tumor cells through high-temperature cauterization, but in the process of cauterization, it may damage surrounding normal cells and tissues, thus causing excessive side damage. For example, the ablation of liver may cause the destruction of normal liver cells, and the ablation of thyroid lesions may cause damage to the thyroid parenchyma or nerve damage. Vascular damage: In the process of ablation treatment, if the surrounding blood vessels are damaged, it will cause abnormal blood supply to normal tissues, resulting in narrowing or charring of blood vessels. Nerve damage: Once nerve damage is caused during ablation treatment, it may cause functional changes, for example, ablation treatment of thyroid lesions may damage the recurrent laryngeal nerve and make patients appear hoarse.