How to change a diaper step-by-step from a pediatrician. Changing a diaper can feel surprisingly intimidating! Here are a few simple tips that are pretty important! For girls: wipe front to back and never backwards! For boys: if you aren’t sure what you are looking at, ask your pediatrician to coach you through it! New parents, I have tons more evidence-based parenting advice and tips. Follow me and check out Baby 411, my trusted guide to helping parents navigate their baby's first year. Comment