Growth and Development: What the Evidence Actually Says
The pattern over time on a centile chart matters far more than any single measurement.
Key takeaways
- Centile charts: in the personal child health record, the red book
- What matters: the trend, not a single point
- Most useful single change: Attend routine health visitor and developmental reviews.
- Commonest mistake: Comparing to other children rather than to the chart.
- See a doctor if any of the signs under "When to speak to a doctor" below apply to you.
What it is
Tracking a child's growth and developmental milestones over time. It sits within Childrens Health. Here are the numbers, taken from the guidance cited at the end.
The numbers, in one place
| Measure | Figure |
|---|---|
| Centile charts | in the personal child health record, the red book |
| What matters | the trend, not a single point |
| Crossing centiles downward | warrants assessment |
| Health visitor reviews | offered at set ages in the early years |
What helps
The advice below comes straight from the guidance cited at the foot of this page.
- Attend routine health visitor and developmental reviews
- Keep the red book updated and bring it to appointments
- Raise concerns early; you know your child best
- Ask about hearing and vision if speech is delayed
What to avoid
A few of these are widely believed. That is precisely why they are here.
- Comparing to other children rather than to the chart
- Waiting to see whether a child catches up on speech
- Assuming a single low measurement is a problem
Where to go next
- Why Growth and Development Matters, Explained Simply
- Growth and Development: What to Do, in Order
- Growth and Development — the reference entry
- Common Childhood Infections: What the Evidence Actually Says
- Child Safety at Home: What Published Guidance Supports
When to speak to a doctor
See a GP or health visitor for a child who is losing weight, crossing centiles downward, not meeting expected milestones, has lost skills they previously had, or is not responding to sound or making eye contact. Loss of previously acquired skills always needs prompt assessment.
Where this comes from
How this page was put together
Every figure, recommendation and warning above is taken from the guidance named in Where this comes from. Nothing on this page is inferred, summarised or generalised beyond what those bodies publish: where they give a number, it is their number, and where they are silent, so are we. Pages are rebuilt whenever the underlying record changes. Sign-off by a named clinician, where it has happened, is shown at the top of the page along with the date.
Medical disclaimer
This article is general information, not medical advice. It cannot account for your own history, medication or circumstances. Always speak to a GP, pharmacist or another qualified health professional before making changes that affect your treatment, and never delay seeking medical advice because of something you have read here. In an emergency, call 999.
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