High free thyroxine can be seen in hyperthyroidism, the treatment of which includes drugs, surgery, radioactive iodine 131 treatment, and so on. 1. Drugs: Commonly used drugs include thiourea drugs (such as propylthiouracil, methylthiouracil) and imidazole drugs (such as carbimazole, methimazole). 2. Surgery: For patients with obvious swelling of the thyroid gland or symptoms of compression, surgical resection can be taken. However, surgery is generally not recommended for patients who are unable to tolerate surgery due to the combination of severe heart, kidney and liver diseases. 3. Radioactive Iodine 131: The purpose is to destroy the thyroid tissue in order to reduce the production of thyroid hormones. This method is simple, economical and has a high cure rate, but patients may develop hypothyroidism and may need to take levothyroxine for life for replacement therapy. High free thyroxine may also be caused by other diseases, such as Hashimoto’s thyroiditis, etc. When high free thyroxine occurs, you should go to a regular hospital in time.