There can be a variety of diseases that cause hyperthyroidism in children, and some patients can be completely cured, such as hyperthyroidism caused by the early stages of subacute thyroiditis and exogenous medications. Some patients are less likely to be cured, such as those with Graves’ disease and malignant tumors. Hyperthyroidism in children can be seen in a variety of diseases, and whether it can be completely cured should be judged according to the condition of the specific disease. Hyperthyroidism is most commonly seen in Graves’ disease, which is treated with medication, radioactive iodine therapy, and surgery. Drug therapy has a relatively low cure rate and is suitable for patients with mild cases. Patients can use drugs such as methimazole and propylthiouracil under the guidance of their doctors. The cure rate of radioactive iodine treatment is relatively high, but some patients have recurrence; the cure rate of surgical treatment is higher, such as partial removal of the thyroid gland, but after the end of the treatment, there may be sequelae such as hypothyroidism, and long-term use of drugs such as levothyroxine is required. Hyperthyroidism in children caused by disorders such as autonomous high-functioning thyroid nodules or adenomas, the early stages of subacute thyroiditis, and exogenous thyrotoxicosis can usually be cured with prompt and effective symptomatic treatment. Hyperthyroidism caused by malignant tumors that secrete thyroid hormones usually has a low cure rate. It is recommended that pediatric hyperthyroidism patients seek timely medical attention.