Hyperthyroidism is the abbreviation of hyperthyroidism, more than 80% of hyperthyroidism in China is caused by Graves’ disease.Graves’ disease patients with diffuse or focal hyperechoic thyroid, in the hyperechoic place, the blood flow signal increased significantly, showing the “sea of fire sign”. Therefore, hyperthyroidism can be detected by color ultrasound, but the diagnosis of hyperthyroidism also needs to be combined with other indicators. Thyroid ultrasound is not the gold standard for diagnosing hyperthyroidism, so if you need to diagnose whether the patient has hyperthyroidism, in addition to ultrasound, should be combined with the venous blood indicators such as thyrotropic hormone, free triiodothyronine, free thyroxine, as well as thyroid-related antibodies. If hyperthyroidism is suspected, it is recommended that the patient should seek medical treatment in time and be clearly diagnosed by a specialized physician.