Thyroid nodule refers to a lump in the thyroid gland, which can move up and down with the thyroid gland and has swallowing action. It is a common clinical disease, which can be caused by many reasons. There are benign and malignant thyroid nodules, and about 95% of them are benign clinically. Because the clinical treatment methods of benign and malignant nodules are different, and the medical expenses involved are also obviously different, it is necessary to go to the hospital to differentiate benign and malignant thyroid nodules by ultrasound. If it is benign, generally do not need to do surgery, take drugs, regular review can be. At present, spearmint oral liquid is commonly used, which has the functions of detumescence, resolving hard mass, anti-inflammatory and analgesic, and has certain curative effect on thyroid nodules. If a suspicious malignant or malignant nodule is diagnosed, surgery is needed. Pay attention to iodine intake in diet. Eat less iodine-rich foods such as kelp and laver, and supplement vitamins and protein.