Lead
One morning, while helping your child get dressed, you notice a body that looks subtly different from a few weeks ago. You find yourself wondering — when did that change? And then the questions: Is this too early? Or is this within the normal range?
This article introduces the Tanner staging system — the clinical framework used to assess pubertal development — explains how growth spurts relate to that framework, and outlines when to consider a medical evaluation for early or delayed puberty. The goal is to give you a reference point for making that judgment, not a prescription.