The hazards of thyroid nodule puncture mainly lie in bleeding, postoperative infection, and damage to the surrounding tissues. 1. Bleeding: Thyroid nodule puncture is an invasive operation, so it cannot be ruled out that it may cause different degrees of bleeding during the operation. 2. Postoperative infection: If sterilization is not thorough during the operation, bacteria and other pathogenic bacteria may enter into the wound, thus causing inflammatory reaction, resulting in redness and edema of the wound. 3. Damage to surrounding tissues: Thyroid nodule puncture can easily cause damage to surrounding tissues, such as trachea, esophagus and nerves. After thyroid nodule puncture, it is recommended to observe more, once there are symptoms such as bleeding, pain or redness, etc., you should consult a doctor in time, and analyze the risk of thyroid nodule surgery according to the diagnosis of a professional physician, and then target treatment.