My 9-year-old daughter is already 5 foot

Short answer: at 9, 5 ft 2 in (about 157 cm) is well above the middle of the usual range for her age and deserves a real growth-chart check this week — but height on its own does not mean early puberty. What settles the question is whether her body started puberty signs *before her 8th birthday*, and whether her height is climbing faster than the chart expects. Tonight's job is small: one careful measurement, one private question, one phone call.

This is not a diagnosis. Only a clinician who examines her and reads her chart can say whether this is early puberty or simply tall, healthy growth.

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1) What you've probably already tried vs. what actually helps

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2) Tonight and this week — about 25 minutes in total

Step 1 — Measure properly (5 min)
Shoes off, flat hard floor, heels together, a book held between the heels, mark with pencil, write the date and the number on one chart. Measure monthly, same time of day, same method.

Step 2 — Ask her, don't inspect her (5 min)
Ask privately, and take "not yet" as a complete answer:

> "You're growing really fast and I'm glad about it. I'm not asking you to get changed or show me anything. If your body starts doing new things — like breast buds, underarm hair, or a first period — would you tell me so we can ask the doctor together?"

Tick only what she tells you, plus when it started:
☐ breast buds ☐ underarm or pubic hair ☐ body odour ☐ acne ☐ first period ☐ a noticeable height jump ☐ mood changes
Then the single most important box: did any of this start before her 8th birthday? yes / no / not sure

Step 3 — Call the clinic (10 min)
Book a non-urgent appointment in the next week or two and say this:

> "She's 9. She measures 157 cm and is well above the middle of the range for her age. I've started a height record, and I want her plotted on the official chart to rule out early puberty. Could we also consider a bone-age X-ray and hormone bloods?"

NHS lists what a clinician may use: a growth chart, a wrist X-ray to estimate how much growing is left, and hormone blood tests. Treatment is usually only needed if the early puberty causes physical or emotional problems — most early cases are simply monitored.

Step 4 — Say one kind sentence to her (5 min)
> "You're growing tall, and that's just your body doing its thing. Nothing's wrong with you and nothing's wrong with your body. We'll ask the doctor about it, and you'll be the one telling us what you notice."

Step 5 — One minute with the sibling or elder
> "Please don't quiz her about her body or compare her to anyone. If she mentions it, just say 'tell your mum' and leave it with me."

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3) Things to avoid this week

• ❌ Any "growth", "puberty booster" or protein powders, supplements, adult hormone creams, or anything bought online without a prescription.
• ❌ Starting or changing any medicine, or stopping one she already takes.
• ❌ Dieting her, restricting food, or making her feel her body is a problem — undernutrition and eating disorders are actually on the clinician's list of things that can disturb puberty (NHS), so cutting food works against you.
• ❌ Weighing or measuring her daily, or checking her body repeatedly.
• ❌ Comments about her body in front of other people; no "you're the tall one" labels; no comparing her to cousins.
• ❌ Confronting her about it, or a serious talk in front of others.

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4) Decision tree

```
START
│
├─ Any sign started BEFORE her 8th birthday?
│ ├─ YES → Book the appointment NOW (this week). Say "possible early puberty"
│ │ on the phone. Ask about bone age + hormone bloods.
│ │ Not an emergency if she feels well — but do not wait for a
│ │ routine check-up.
│ └─ NO / NOT SURE → Go to next box.
│
├─ Height climbing much faster than the chart over 2–3 months?
│ ├─ YES → Book within 2 weeks and mention the speed of growth.
│ └─ NO → Bring it to her next routine check-up. Keep measuring monthly.
│
├─ Signs progressing quickly (several signs in a few months)?
│ └─ YES → Book within 2 weeks.
│
└─ Red flags (section 5)?
└─ YES → Same-day medical care today, not Thursday.
```

Realistic success within 24 hours: a dated, correctly measured height on the chart; the checklist filled in with "before age 8 — yes / no / not sure"; the clinic called with an appointment date; and one kind sentence said to her so she hears about her body from you, not from a chart. Success does not mean a diagnosis, a prediction of adult height, or a solved worry — those come later, from the clinician.

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5) Red flags — act the same day

Go for urgent medical care today if she:

• passes out, has a convulsion, or is hard to wake;
• is struggling to breathe, or her lips or face look blue;
• cannot keep fluids down, has not passed urine for a long stretch, or has cold hands and feet with dry mouth;
• develops a rash together with fever that does not fade when you press a glass against it;
• has started puberty signs together with severe headaches, vision changes, marked tiredness, big weight loss, constant thirst and frequent urination, or ongoing tummy pain or loose stools.

None of this is likely. It is a short list so you know what "go today" looks like without worrying at 2 a.m.

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6) Bring to the appointment

A one-page growth-notes sheet is ready for you to print and take with you — height rows, the signs checklist with start dates, and the six questions to ask out loud.

growth-notes-appointment-9a7d794a.pdf

Also bring: the chart with your dated measurements, the heights of both parents, every medicine or supplement in the house, any allergies, and any change in her appetite, sleep, energy or tummy symptoms.

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7) One question back

Tell me your city and country and I'll point you to the official height-for-age growth chart to print, and to the correct local clinic door for this kind of referral.

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Sources (both checked 5 November 2026)

Source: nhs-conditions https://www.nhs.uk/conditions/early-or-delayed-puberty/
Source: medlineplus https://medlineplus.gov/genetics/condition/central-precocious-puberty/