Hyperthyroidism is a series of hypermetabolic syndromes in the nervous system, circulatory system, digestive system, cardiovascular system and other systems of the body, as well as symptoms of hyperexcitability and ophthalmologic symptoms, due to the excessive secretion of thyroid hormones or due to the increase in the level of thyroid hormones in the blood. For example, panic, tachycardia, fear of heat and cold, excessive sweating, hyperphagia, emaciation, weight loss, fatigue, and emotional agitation. Thyroid antibodies: Thyroglobulin antibodies (TGA), thyroid peroxidase antibodies (TPOA), thyrotropin receptor antibodies (TRAB) and other antibodies such as anti-nuclear antibodies (ANA), anti-smooth muscle antibodies (SMA), anti-mitochondrial antibodies (AMA), anti-cardiac antibodies (CMA), anti-gastric lining cells (PCA), etc. Thyroid-stimulating antibodies can be used for the detection of thyroid cancer, and thyroid stimulating antibodies can also be used to detect thyroid cancer, such as thyroid stimulating antibodies (TSA), anti-thyroid stimulating antibodies (TSS), anti-stomach lining cells (SMC), anti-stomach lining cells (STLC), and thyroid stimulating antibodies (THA). The thyroid stimulating antibody (TSAb) or thyroid stimulating immunoglobulin (TSI) is positive in >90% of hyperthyroid patients with the highest rate of positivity. 2.Basal metabolic rate (BMR): increase in hyperthyroidism, >15%, and the hyperthyroidism condition is equal to the increase or decrease, can be measured by instrument or calculated, formula: quiet (pulse + pulse pressure) – 111 = BMR%. 3.Thyroid hormone: T3 normal value of 950～205μg/L, T4 normal value of 60～14.8μg/L, resin uptake ratio (RUR) of 0.8～1.1, free T4 index (FT4Ⅰ) of 9.6～16.3, FT3Ⅰ6.0～11.4pmol/L, FT4 for 32.5±6.0pmol/L, hyperthyroidism are increased. The normal value of rT3 is 0.2～0.8μmol/L, which is also increased in hyperthyroidism, and sometimes the change is earlier than that of T3 and T4. 4, TRH (thyroid stimulating hormone releasing hormone) test: when hyperthyroidism, T3 and T4 are increased, and the feedback inhibition of TRH stimulates the secretion of TSH, therefore, after the intravenous injection of TRH300mg, the pituitary still does not secrete TSH or seldom secretes TSH, and TSH does not increase in hyperthyroidism, and TSH does not increase in hyperthyroidism. TSH is not elevated in hyperthyroid patients and TSH level is elevated in hypothyroid patients.