The treatment of thyroid nodules first requires assessing the functionality of the thyroid nodules, determining whether they are functional or non-functional tumors. This requires a blood test to check thyroid function. The second step is to assess the malignancy of the thyroid nodules, whether they are benign or malignant. The treatment methods differ accordingly. The main tool for differentiation is the color Doppler ultrasound. If the color Doppler ultrasound indicates a benign nodule and the nodule is small, less than four centimeters, it can be observed dynamically. However, if it indicates a malignant nodule, then prompt surgical treatment is necessary.