Multiple thyroid nodules are mainly used to judge the nature of the nodules. The details are as follows: 1. If the nodules are considered benign, and the nodules are relatively small, combined with the thyroid function examination is normal, then this situation does not need special treatment, and regular review can be selected. 2. If the nodule is malignant, this condition requires surgical treatment. 3. If the benign nodules are relatively large, resulting in corresponding symptoms, such as hoarseness, foreign body sensation in the throat, dyspnea, shortness of breath, etc., this situation also requires surgical treatment. The causes of thyroid nodules are related to heredity, iodine deficiency, and normal thyroid tissue hyperplasia. In addition, the history of radioactive exposure and chronic thyroid inflammation are also inducing factors.