Thyroid Disorders in the Tropics

Thyroid disorders are a major cause of non-communicable diseases in developing nations, with the tropical regions presenting unique challenges due to diverse environmental, socio-economic, and cultural factors. Iodine deficiency remains a significant public health concern, leading to conditions such as endemic goiter and cretinism. The prevalence of iodine deficiency disorders has declined due to salt iodization programs, but inconsistent implementation continues to affect many tropical areas. Autoimmune thyroid diseases, including Hashimoto's thyroiditis and Graves' disease are influenced by genetic and environmental factors in the tropics with a minor increase in prevalence following iodization. Thyroiditis, often associated with infections and inflammatory conditions prevalent in tropical regions, add to the complexity. Congenital hypothyroidism, the leading cause of preventable intellectual disability, is challenging to address due to limited newborn screening programs. A multifaceted approach is needed to address these concerns, including improving healthcare infrastructure, increasing public awareness, ensuring consistent iodine supplementation, and enhancing training for healthcare providers. These measures can significantly improve thyroid disorder-related outcomes in tropical nations. For complete coverage of all related areas of Endocrinology, please visit our on-line FREE web-text, WWW.ENDOTEXT.ORG.