[The problems and prospects of diagnosis and treatment of hypothyroidism in special populations].

The prevalence of thyroid diseases in China continues to increase, especially for hypothyroidism. This article focuses on the existing problems in the diagnosis and treatment of hypothyroidism in special groups, including obese patients, the elderly, children and pregnant women. The pathogenesis and intervention measures of obesity-induced hypothyroidism have been the hot research frontiers. The prevalence of subclinical hypothyroidism in the elderly is the highest, while its diagnostic criteria and treatment strategies are still controversial. The hazard and treatment of subclinical hypothyroidism and hypothyroxinemia during pregnancy have now become an international concern. And there also exist some problems in the screening, diagnosis and treatment of congenital hypothyroidism in children. So it is urgent to carry out high-quality clinical research to provide theoretical basis for clinical diagnosis and treatment, and carry out in-depth research on related mechanisms to establish a foundation for the construction of a scientific prevention and treatment system for hypothyroidism.