‹ All terms

Glossary · Growth

Growth chart

A reference plot of height, weight, head circumference, or BMI against age, used to track whether a child is growing on a steady curve. Pediatricians use the WHO chart for children under 2 and the CDC chart for ages 2–19. The trend matters more than any single point.

What happens at checkups

At each well-child visit, your child's doctor weighs and measures your child and marks the numbers on a chart. For babies and toddlers that usually means weight, length and head size. Older children are measured standing up. Each visit adds one dot, and over several visits the dots form a line.

The line matters more than one dot

Healthy children come in all shapes and sizes. A small child from a family of small people can be growing just as well as a big child from a tall family. What the doctor watches is whether your child keeps following their own line over time. One reading that sits a little off the line is common, especially in the first year, after an illness, or around the time a toddler is first measured standing up instead of lying down. Your child's doctor looks at the whole picture across visits, not one number.

What it means for meals at home

A growth chart is not a feeding target. You don't need to push extra food when your child is on a lower line, or cut back when they're on a higher one. The everyday habits stay the same: regular meals and snacks, a mix of foods across the week, and letting your child decide how much to eat from what you serve.

  • Skip comparing your child's numbers with siblings, cousins or friends.
  • Write your questions down before the visit.
  • Ask to see the chart, so you can follow the line yourself.

When to ask

If you have questions about your child's chart, ask your pediatrician to walk you through it at the next visit.

References

  1. AAP HealthyChildren.org: Understanding Growth Charts: A Parent's Guide to Percentiles & Z-Scores
  2. Nemours KidsHealth: Growth Charts

Related terms

Miriel uses this concept across food scans, meal plans, and AI Coach responses where it is relevant to a child's profile. For the underlying clinical and scientific basis, see the research page.