Abstract Objective To verify whether breastfeeding promotion was used as a non-pharmacological intervention for pain relief in hospitalized infants. Methods This observational, cross-sectional, retrospective, and descriptive study was conducted with infants older than 24 hours in the Neonatal Intensive Care Unit of a tertiary hospital from 2019 to 2021. The data were subjected to descriptive and inferential analysis. Ethical precepts were respected. Results Fifty-three infants were included. Breastfeeding was performed in 79.2% of male infants (57.1%), without congenital malformations (92.9%), […]