Background: In Latin America, sexism is a situation that is still frequently experienced, especially in Mexico, where culture promotes this situation by giving them certain roles and responsibilities, including family planning. Objective: To determine the sexism as factor associated with the intention to use the contraceptive injection in adult men in the state of Veracruz. Methods: An observational, analytical, cross-sectional and prospective study was carried out during January-April 2022. Men between the ages of 18 and 45 from Veracruz were included, excluding transsexual and homosexual participants, patients with a diagnosis of psychiatric illness that conditions the functions mentally superior or with a diagnosis of any type of dementia, patients with diagnosed infertility and vasectomy performed. Incomplete surveys were removed. A probabilistic sample size was calculated, with convenience sampling. The main independent variables were machismo (EMSsexism-12 test, a.Cronbach 0.83), family function (family APGAR test, a.Cronbach 0.83), type of family and knowledge about the contraceptive injection, while the dependent variable was the intention of use the contraceptive injection. For the statistical analysis, absolute and relative frequency measurements were made using the SPSS software for X2 test with Odds Ratio and confidence interval (95%). Results: 263 were obtained, being single in 89%. The factors (OR/CI) with a significant association (p0.05). Conclusions: Age, number of children, and marital status are associated with the intention to use the contraceptive injection, while machismo, schooling, and family function are not.