Objective To discuss the factors associated with the diagnosis of maternal syphilis infection.Methods Data of cases with syphilis infection diagnosed during maternity were collected from maternal syphilis monitoring system of Zhejiang province from 2013 to 2016.Unconditional logistic regression model was used to analyze the factors associated with diagnosis of syphilis infection during pregnancy and postpartum. Results Univariate analysis showed significant differences in ethnicity,residence,education,occup...