Currently, infant hyperthyroidism can be cured. Pediatrics has a more subtle regimen of medications regarding hyperthyroidism that should cure it if adhered to, but it may take a relatively long time. Hyperthyroidism in infants means that the child is found to have hyperthyroidism in infancy and is diagnosed as such. Generally, hyperthyroidism in infancy is characterized by increased T3 and T4 and decreased TSH, which are relatively obvious symptoms of hyperthyroidism. Clinical symptoms are mainly noisy, irritable, and difficult to sleep. Hyperthyroidism in infants is usually a congenital disorder, or the infant may acquire the disease during the development and growth of the infant because the mother has hyperthyroidism, i.e., the mother may take hyperthyroidism drugs during the process of hyperthyroidism, or the level of hyperthyroidism hormones may have some effect on the development of the embryo.