to describe the epidemiological profile of congenital syphilis (CS) in Tocantins, from 2007 to 2015. this was a cross-sectional descriptive study conducted with data from the Notifiable Health Conditions Information System (SINAN) and the Live Birth Information System (SINASC). 1,029 CS cases were reported; mean CS incidence was 4.6/1,000 Live Births (LB), increasing from 3.1/1,000 LB in 2007 to 9.8/1,000 LB in 2015 (increase of 216.1%); municipalities located in the central and northern

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... of the state had the highest rates; the majority of mothers of newborn babies were 15-24 years old, had elementary school education, started prenatal care in the third trimester of pregnancy, and received inadequate prenatal care. high occurrence of congenital syphilis in Tocantins requires immediate intensification of CS surveillance and improved prenatal care quality, especially in municipalities with higher incidence.