Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5264110.17816/kazmj52641Research ArticleOn the spread of endemic goitre in the Tatar RepublicKrupachevI. F.info@eco-vector.com13081935318-99229292911202029112020Copyright © 2020, Krupachev I.F.2020<p>A comprehensive study of the endemic goiter shows that the latter has a certain geographical distribution. Affecting entire villages and districts, it acquires the character of a national disaster, since it bears in itself the beginnings of human degeneration in the form of cretinism, varying degrees of mental and physical backwardness: deafness, infantilism and a number of other constitutional violations.</p>Kazan Medical archiveКазанский медицинский архив