The differences between thyroid nodules and hyperthyroidism are definitional differences, etiologic differences, disease symptom differences, and treatment differences. 1. Definitional difference: Thyroid nodules are caused by the abnormal proliferation of thyroid tissues, while hyperthyroidism is caused by excessive secretion of thyroid hormones by thyroid cells. 2. Difference in etiology: the etiology of hyperthyroidism is related to thyroid autoimmune diseases and long-term large amount of iodine intake, etc.; the etiology and pathogenesis of thyroid nodules are still unknown. 3. Difference in symptoms: Hyperthyroidism is characterized by increased bowel movements, weight loss, excessive sweating, irritability, etc. Thyroid nodules may be asymptomatic, but when the nodules are too large, they may cause compression symptoms, such as dysphagia and dyspnea. 4. Therapeutic difference: hyperthyroidism treatment mainly includes anti-thyroid medication, radioactive iodine treatment, surgery and so on. Thyroid nodule treatment methods include medication, thyroid ablation, surgery and several other treatments. It is recommended that patients suffering from hyperthyroidism or thyroid nodules go to the hospital in time, and under the guidance of the doctor to carry out targeted treatment, so as not to delay the condition.