Objective: to measure the pain of newborn infants who underwent venous puncture and identify nursing care. Method: this is a quantitative, cross-sectional, and observational study carried out in a Neonatal Intensive Care Unit of a public hospital in Fortaleza, Ceara, Brazil, with 110 newborn infants and 110 nursing professionals. A form and the Neonatal Infant Pain Scale (NIPS) were used. The data were organize...