Objective: Determine the association between attitudes towards breastfeeding and the practice of exclusive breastfeeding in Mexican mothers. Material and method: The study design was descriptive, correlational and cross-sectional. The sample was 169 mothers. Biological mothers with at least one child from 0 to 24 months of age and with signed informed consent were included. We used a sociodemographic data card, the Scale of Attitudes towards Infant Feeding and questions about the practice of breastfeeding. We calculated univariate and bivariate descriptive statistics. Results: The sample of this study involved 169 dyads (mother and son). The mean age of the mothers was 27,22 (SD = 5,70) years.  According to attitudes towards feeding, 59,80% reported a neutral attitude towards infant feeding. 52,10% of mothers reported that they would stop breastfeeding after 12 months of age. 83,10%...