There are many symptoms of mixed thyroid nodules: First, mixed thyroid nodules are one of the thyroid disorders that cause abnormal secretion of thyroxine in the body, resulting in fear of heat, palpitations or edema, and obesity. Secondly, if a mixed thyroid nodule becomes too large, it can lead to pressure symptoms in the body, including difficulty breathing, difficulty swallowing, and hoarseness. In addition, mixed thyroid nodules do not cause any discomfort if they are small. In conclusion, there are many symptoms of mixed thyroid nodules, and to rule out malignancy, you need to go to the hospital in time to test the properties of thyroid nodules and take a rational treatment plan.