In this issue of Pediatrics, Sudry et al explored whether there were sex-related differences in children attaining developmental milestones.1 The authors reviewed data from a national child surveillance program that included ∼1000 clinics, and 59 developmental milestones from 4 developmental domains, creating new sex-specific developmental scales. The authors concluded that there may be inaccuracies utilizing the current unified developmental scales for surveillance versus the sex-specific scales, because females may be missed when identifying developmental delays, and males may be overdiagnosed.1 This article should remind all of us to remember the differences between developmental surveillance and developmental screening, and through a lens of equity, also emphasizes what is essential for clinicians to consider for all children to achieve optimal developmental outcomes.