The treatment of multiple small nodules in the left lobe of the thyroid gland depends on the nature of the nodules. If the nodules are benign, it is necessary to check the thyroid function and other indicators to clarify the cause of the nodules before deciding whether to review them regularly or to treat them, and if they are malignant, it is necessary to perform surgery or ablation treatment after comprehensive evaluation. 1. Generally speaking, the majority of thyroid nodules are benign and less than 1% are malignant. If there are no special symptoms and the solid nodules are small in size, regular checkups may be necessary and no special treatment is needed for the time being. If the nodule is caused by hyperthyroidism, it can be treated with oral antithyroid therapy such as methimazole tablets; if it is caused by subacute thyroiditis, it is necessary to take non-steroidal anti-inflammatory drugs such as meloxicam. 2. When the patient has a malignant tendency, such as aspect ratio > 1, unclear border, or large volume producing compression symptoms, it is advisable to evaluate the condition and then use surgical methods for treatment. If multiple thyroid nodules are found, patients should go to regular hospitals immediately and have regular checkups to avoid delaying their condition.