When a child seems significantly shorter than classmates, grows more slowly than expected, or begins falling downward on the growth chart, parents often hear some version of:
"Let's keep watching it."
Sometimes observation is exactly the right approach.
But there are also situations where waiting without understanding why a child is growing slowly can mean losing valuable time during the years when the growth plates are still open.
A child growth clinic focuses specifically on answering questions such as:
- Is my child's growth pattern normal?
- Is my child simply genetically short?
- Could my child be a late bloomer?
- Is puberty occurring at the expected time?
- How much growth potential remains?
- Is bone age delayed or advanced?
- Does my child need laboratory testing?
- Could growth hormone deficiency or another medical condition be involved?
- Is treatment appropriate—or is monitoring the better choice?
A thorough pediatric growth evaluation should not begin with a medication.
It begins with understanding the child's growth pattern.
Growth velocity, growth-chart history, parental heights, puberty stage, nutrition, medical history, laboratory testing when appropriate, and bone age can all help determine whether a child's height reflects normal variation or something that deserves additional attention.
The Pediatric Endocrine Society emphasizes that many short children are healthy and have familial short stature, constitutional growth delay, or idiopathic short stature. However, falling across percentiles or growing unusually slowly can be signs that additional evaluation is appropriate.
For parents considering a growth clinic, understanding what should happen before treatment is ever discussed can help you choose the right provider and ask better questions.
What Is a Child Growth Clinic?
A child growth clinic is a practice focused on evaluating children and adolescents whose height or growth pattern is causing concern.
These clinics may evaluate children who:
- Are significantly shorter than peers
- Have dropped across height percentiles
- Are growing unusually slowly
- Have delayed puberty
- Have delayed bone age
- Were born small and haven't caught up
- Have low IGF-1
- Have suspected growth hormone deficiency
- Have a predicted adult height substantially below family expectations
- Need a second opinion regarding previous growth recommendations
A high-quality clinic should differentiate normal short stature from underlying disease before recommending treatment.
That's important because short stature is not a diagnosis by itself.
The Endocrine Society notes that many children with short stature have normal variants such as familial short stature or constitutional delay, while others may have nutritional, gastrointestinal, thyroid, genetic, or growth-hormone-related conditions.
When Should You Consider a Child Growth Clinic?
Parents do not necessarily need to wait until a child becomes extremely short.
Sometimes the pattern matters more than the current percentile.
Consider seeking a dedicated evaluation if your child:
- Is below approximately the 3rd–5th percentile for height
- Has crossed downward through height percentiles
- Has Poor Growth Velocity
- Is substantially shorter than expected based on parental heights
- Has not experienced expected puberty development
- Has a known Delayed Bone Age
- Has unexplained Low IGF-1
- Was born Small for Gestational Age and has not experienced appropriate catch-up growth
- Has chronic gastrointestinal symptoms or poor weight gain
- Has been told repeatedly to "wait and see" despite persistent concerns
The Pediatric Endocrine Society specifically recommends referral consideration for children below the third percentile, children older than 3 who have abnormal growth velocity, and children whose height is significantly below their genetic potential.
Being Short and Growing Poorly Are Not the Same Thing
This is one of the most important concepts parents should understand before booking a growth evaluation.
A child can be short and growing normally.
Another child can currently have an average height but be growing abnormally slowly.
For example:
Child A
- Height: 4th percentile
- Has remained near the 4th percentile for years
- Parents are short
- Normal growth velocity
This may represent familial short stature.
Child B
- Height: 18th percentile
- Previously at the 60th percentile
- Continues dropping
- Growth velocity has slowed substantially
Child B may deserve more investigation despite technically being taller than Child A.
The Pediatric Endocrine Society identifies crossing downward through percentile lines as a warning sign that growth rate may have decreased.
That is why a good clinic should assess the trajectory, not simply today's height.
What Happens During a Pediatric Growth Evaluation?
A comprehensive evaluation typically has several components.
Not every child needs every test.
The goal is to gather enough information to understand the child's individual growth pattern without automatically ordering unnecessary testing.
1. Reviewing the Growth Chart
One of the most valuable tools may already exist in your pediatrician's records.
Previous height and weight measurements can show:
- Where the child started
- Whether percentiles have changed
- When growth began slowing
- Whether weight changed before height
- Whether puberty appears to be influencing growth
Parents should bring as much historical growth information as possible.
A Pediatric Growth Evaluation Checklist can make it easier to organize records before an appointment.
2. Calculating Growth Velocity
Growth velocity describes how much height a child gains over a specific period.
This can be more informative than height percentile alone.
The Endocrine Society notes that during much of childhood, failure to gain roughly 2 inches per year—or downward movement across height percentiles—can indicate poor growth and warrant evaluation.
Growth rate changes naturally with age and puberty, so the number must always be interpreted in context.
Our guide to Child growing less than 2 inches per year explains why a slowing growth rate can be an important clue.
3. Comparing Height With Genetic Potential
Parents' heights provide useful context.
Clinicians can estimate a child's mid-parental target height using parental measurements.
This isn't a guarantee of adult height.
Rather, it provides an approximate genetic range against which the child's actual growth pattern can be compared.
A child whose entire family is relatively short may have a very different situation from a child who is dramatically shorter than two tall parents.
Parents in the second situation may find Child not growing but parents are tall especially helpful when understanding why further evaluation can be appropriate.
4. Evaluating Puberty
Puberty can dramatically change growth velocity.
A child entering puberty later than classmates may temporarily appear much shorter because peers have already started their adolescent growth spurts.
This may represent Constitutional Growth Delay.
The Pediatric Endocrine Society notes that children with constitutional delay frequently have delayed skeletal maturation and later puberty while ultimately reaching an adult height consistent with their family pattern.
But delayed puberty can have other causes.
That is why Delayed Puberty should be assessed rather than automatically labeled as "being a late bloomer."
5. Checking Bone Age
One of the most useful tools in pediatric growth evaluation is a bone-age X-ray.
A Bone age test for child height usually involves an X-ray of the left hand and wrist.
It helps assess skeletal maturity and may provide information about how much growing time remains.
The Endocrine Society specifically describes bone age as an assessment of growth-plate maturity that helps determine whether skeletal development matches chronological age and how much growing time may remain.
Why Bone Age Matters So Much
Imagine two 12-year-old boys who are exactly the same height.
One has:
- Chronological age: 12
- Bone age: approximately 12
- Puberty progressing normally
The other has:
- Chronological age: 12
- Bone age: approximately 10
- Puberty developing later
Even though they are the same chronological age and height, their remaining growth potential may be quite different.
This is why Delayed Bone Age can provide important context when interpreting short stature.
It does not tell you exactly how many inches a child will grow.
But it can help clarify where the child is biologically within the growth process.
6. Estimating Predicted Adult Height
Parents understandably want to know:
"How tall will my child be?"
Height prediction uses information such as:
- Current height
- Chronological age
- Bone age
- Puberty
- Growth trajectory
- Family height patterns
Predictions are estimates—not promises.
Our guide How tall will my child be? Height prediction by age explains why predicted adult height can change as new information becomes available.
A reputable growth clinic should present predicted height as a range or estimate rather than guaranteeing a specific final height.
7. Reviewing Nutrition and Overall Health
A child's growth evaluation should not focus exclusively on hormones.
Nutrition and systemic health matter.
Growth can be affected by:
- Inadequate calories
- Poor protein intake
- Iron deficiency
- Vitamin D deficiency
- Zinc deficiency
- Celiac disease
- Inflammatory bowel disease
- Kidney disease
- Chronic inflammatory conditions
The Pediatric Endocrine Society includes poor nutrition, celiac disease, inflammatory bowel disease, renal disease, anemia, and other chronic conditions among possible causes of impaired growth.
A child who isn't growing appropriately may therefore need broader evaluation before any hormone therapy is considered.
8. Ordering Pediatric Growth Laboratory Tests When Appropriate
Not every short child needs extensive testing.
The Pediatric Endocrine Society notes that laboratory testing is often low yield in an otherwise healthy child who is mildly short but growing normally. Testing becomes more appropriate when the child is unusually short or growth velocity is abnormal.
When indicated, Pediatric endocrine labs for height evaluation may include:
- Complete blood count
- Comprehensive metabolic panel
- Thyroid testing
- Celiac screening
- IGF-1
- IGFBP-3
- Inflammatory markers in selected children
- Puberty hormones when clinically indicated
Testing should answer a clinical question—not simply create a large panel of numbers.
What Does a Low IGF-1 Mean?
IGF-1 is an important growth factor influenced substantially by growth hormone.
However, Low IGF-1 does not automatically mean a child has growth hormone deficiency.
IGF-1 can also be influenced by:
- Age
- Pubertal stage
- Nutrition
- Chronic illness
- Liver health
- Laboratory reference ranges
Therefore, IGF-1 should be interpreted together with growth velocity, puberty, bone age, clinical history, and other findings.
When Is Growth Hormone Testing Needed?
Growth hormone itself cannot usually be diagnosed from a random blood measurement because GH is secreted in pulses.
If the overall evaluation raises concern for Growth Hormone Deficiency, specialized testing may be needed.
The Endocrine Society notes that additional testing for GH deficiency can involve medications that stimulate GH secretion followed by blood sampling over several hours.
Our article on the Growth hormone testing preparation child explains what families may encounter when stimulation testing is recommended.
Importantly, not every short child needs a stimulation test.
Common Diagnoses a Growth Clinic May Consider
A proper evaluation should attempt to determine why growth differs from expectations.
Possible explanations include:
Growth Hormone Deficiency
True GH deficiency occurs when the body does not produce adequate growth hormone.
Growth failure is one of the most important clinical signs.
Idiopathic Short Stature
Idiopathic Short Stature describes significant short stature when an appropriate diagnostic evaluation doesn't reveal another identifiable cause.
These children may be healthy but considerably shorter than average.
Constitutional Growth Delay
These children are often called late bloomers.
They tend to mature later and frequently have delayed bone age.
Familial Short Stature
Children may simply inherit shorter stature from their parents while maintaining normal growth velocity.
Small for Gestational Age
Some children born Small for Gestational Age experience catch-up growth.
Others remain significantly shorter than expected and may require additional evaluation.
Pituitary or Other Hormonal Disorders
Problems involving the pituitary, thyroid, puberty hormones, or other endocrine systems can affect growth.
Children with suspected Pituitary Disorders may require more specialized endocrine evaluation.
Does Going to a Growth Clinic Mean My Child Needs HGH?
Absolutely not.
A growth evaluation and growth hormone treatment are two completely different decisions.
The purpose of evaluation is first to determine:
Is there actually a growth problem?
Then:
What is causing it?
Only after those questions are answered should treatment be discussed.
The 2025 American Academy of Pediatrics review on short stature notes that growth hormone therapy is needed by only a minority of children evaluated for short stature.
For children who do qualify, HGH for Children to Grow Taller may be one treatment consideration depending on diagnosis, skeletal maturity, risks, expected benefit, and family goals.
What About Sermorelin?
Families may also encounter information about Sermorelin for Children.
Sermorelin is a growth-hormone-releasing hormone analog intended to stimulate endogenous GH secretion rather than directly replacing GH.
Parents should understand an important distinction:
Recombinant human growth hormone has much more extensive pediatric evidence and FDA-approved indications for childhood growth disorders.
Compounded sermorelin does not have the same level of evidence demonstrating improvement in final adult height.
It should therefore not be presented as medically equivalent to FDA-approved pediatric somatropin. However, in some cases sermorelin may still be used.
What Should Parents Ask Before Choosing a Child Growth Clinic?
This is perhaps the most useful part of the entire article.
Before booking, ask:
1. Do you evaluate the cause of short stature before discussing treatment?
Treatment should follow evaluation—not precede it.
2. Will you review my child's complete growth history?
A single height measurement is inadequate.
3. Do you calculate growth velocity?
A child's speed of growth is critical.
4. Will puberty stage be considered?
Puberty fundamentally changes how growth should be interpreted.
5. Do you use bone age when clinically appropriate?
Bone age can provide valuable information about skeletal maturity.
6. What laboratory testing is actually necessary?
Avoid both extremes: doing no evaluation and ordering indiscriminate panels.
7. How do you determine whether HGH is appropriate?
Ask what diagnosis and clinical findings support treatment.
8. How will treatment be monitored?
If medication is prescribed, the clinic should have a structured follow-up plan.
9. How do you measure whether treatment is working?
Height velocity and objective growth data should matter more than testimonials.
10. What happens if treatment doesn't improve growth?
Families should understand stopping rules and expectations before beginning therapy.
What Should You Bring to Your First Appointment?
Preparing ahead can make the consultation much more productive.
Bring:
- Previous pediatric growth charts
- Heights and weights from prior visits
- Bone-age results if already performed
- Actual bone-age imaging when available
- Previous laboratory results
- Endocrinology notes
- Medication list
- Birth records if relevant
- Parents' heights
- Information about when parents experienced puberty
The Pediatric Endocrine Society specifically lists prior growth data, medical records, recent labs, and bone-age imaging as useful information for a growth consultation.
Our Pediatric growth evaluation appointment: what to expect guide can help families prepare before the visit.
Growth Clinic Versus Regular Pediatrician: What's the Difference?
Pediatricians are essential for monitoring overall childhood health.
They routinely:
- Measure height and weight
- Plot growth charts
- Monitor puberty
- Identify potential abnormalities
- Refer when necessary
A growth-focused clinic provides a more concentrated evaluation when height or growth trajectory becomes the primary concern.
This may include more detailed analysis of:
- Height velocity
- Genetic target height
- Bone age
- Puberty timing
- Predicted adult height
- Growth-related laboratory tests
- Treatment eligibility
These roles are complementary rather than competing.
A good growth clinic should work from—and value—the data already collected by the child's pediatrician.
When Is a Pediatric Endocrinology Referral Particularly Important?
Some children need evaluation by a pediatric endocrinologist, especially when the presentation suggests a complex endocrine disorder.
The Pediatric Endocrine Society recommends referral for children with findings such as:
- Height below the third percentile
- Abnormal growth velocity after age 3
- Height significantly below genetic potential
- Possible multiple pituitary hormone deficiencies
Poor growth associated with headaches or vision changes may warrant urgent evaluation.
A specialized growth clinic should recognize when a case requires additional pediatric endocrine, genetic, gastrointestinal, or other specialty evaluation.
Can a Growth Clinic Predict Exactly How Tall My Child Will Be?
No clinic can guarantee final adult height.
Predictions can be useful, but they remain estimates.
Why?
Because future height can be affected by:
- Puberty timing
- Growth velocity
- Bone-age progression
- Genetics
- Nutrition
- Medical conditions
- Treatment response
Be cautious about any clinic promising an exact final height or guaranteed number of inches.
Good pediatric growth care should provide realistic ranges and probabilities, not certainty where none exists.
Should You Get a Second Opinion?
Sometimes, yes.
A Second opinion growth hormone therapy kids consultation can be useful when:
- Your child has already been evaluated but you're unsure about the diagnosis.
- HGH has been recommended and you want another interpretation.
- Treatment was declined despite continued poor growth.
- Bone-age interpretation appears inconsistent.
- Growth velocity has changed despite reassuring laboratory results.
- You want to understand whether watchful waiting is reasonable.
A second opinion does not mean the first clinician was wrong.
Growth evaluation often involves integrating several imperfect pieces of information, and families may benefit from another interpretation before committing to years of therapy.
What Does Growth Hormone Treatment Monitoring Look Like?
If treatment is prescribed, the evaluation is only the beginning.
Ongoing management should assess:
- Height
- Weight
- Growth velocity
- Treatment adherence
- Pubertal development
- IGF-1 when appropriate
- Side effects
- Bone-age progression when clinically indicated
Our Growth hormone monitoring clinic for kids guide explains why treatment should be an ongoing clinical process rather than simply receiving medication refills.
Parents considering treatment should also understand Growth hormone treatment expectations for parents, including what constitutes a meaningful response and when expectations should be reconsidered.
Is Earlier Evaluation Better?
Earlier evaluation can be helpful when a genuine growth abnormality exists because linear growth requires open growth plates.
However, "earlier" does not mean that every short child needs early medication.
It means that families benefit from understanding the growth pattern while enough time remains to:
- Observe growth
- Correct nutritional problems
- Identify medical conditions
- Monitor puberty
- Compare serial bone ages
- Consider appropriate treatment when indicated
The goal is to avoid both unnecessary treatment and unnecessary delay.
Growth Plates Create a Biological Treatment Window
Height increases while the growth plates remain capable of producing new bone length.
As skeletal maturation progresses, that opportunity gradually narrows.
Our article on the treatment window before growth plates fuse explains why chronological age alone cannot determine whether meaningful growth potential remains.
A 13-year-old with advanced skeletal maturity may have less growth remaining than a 15-year-old late bloomer with substantially delayed bone age.
This is why bone age and puberty matter.
What Should a Good Child Growth Clinic Never Promise?
Be cautious if a clinic guarantees:
- A specific number of inches
- A particular adult height
- That every short child qualifies for HGH
- That supplements can dramatically increase height
- That bone age perfectly predicts adult height
- That treatment has no risks
- That one laboratory value provides the entire diagnosis
Growth medicine involves uncertainty.
The most trustworthy approach is to explain what is known, what is estimated, what remains uncertain, and what additional data might change the recommendation.
Questions Parents Should Be Able to Answer After the Evaluation
You should leave a comprehensive growth evaluation understanding:
- Where is my child's height relative to peers?
- How fast is my child currently growing?
- Is that growth velocity appropriate for age and puberty?
- How does height compare with genetic expectations?
- What is the bone age?
- How much growth potential appears to remain?
- Is puberty early, normal, or delayed?
- Is there evidence of an underlying medical condition?
- Are more tests necessary?
- Is treatment indicated?
- What happens if we simply monitor?
- If treatment is considered, what are the realistic benefits, limitations, costs, and risks?
If those questions remain unanswered, the evaluation may not have provided the clarity you were seeking.
Final Thoughts: A Growth Clinic Should Give Parents Answers Before Offering Treatment
The most important reason to visit a child growth clinic is not to obtain growth hormone.
It is to understand why your child is growing the way they are.
A thorough evaluation should consider:
growth velocity + growth-chart trajectory + genetic potential + puberty + bone age + nutrition + medical history + appropriate laboratory testing.
Only after those pieces are assembled should treatment enter the discussion.
Many short children are healthy and simply follow a genetically shorter or later-maturing growth pattern. Others may have Idiopathic Short Stature, Constitutional Growth Delay, nutritional problems, delayed puberty, or another explanation.
A smaller number have conditions such as Growth Hormone Deficiency that require specific medical treatment.
The goal is to identify which situation applies to your child while there is still enough growth time to make informed decisions.
At HGHforChildren.com, the first step is a pediatric growth evaluation focused on reviewing the child's growth history, understanding remaining growth potential, and determining whether additional testing is warranted before treatment decisions are made.
For families considering a consultation, bringing previous growth measurements, laboratory results, bone-age imaging, and parental height information can make the first discussion significantly more productive.
A good growth clinic should never make parents feel pressured to treat.
It should help them leave with something far more valuable:
a clear understanding of where their child is now, why their growth pattern looks the way it does, how much growth potential may remain, and what—if anything—should happen next.
Medically Reviewed By
Dr. Devin Stone, ND
Dr. Devin Stone is a Doctor of Naturopathic Medicine and founder of HGHforChildren.com. His clinical focus includes pediatric growth optimization, growth hormone deficiency, delayed bone age assessment, constitutional growth delay, IGF-1 evaluation, and evidence-informed therapies designed to help children maximize healthy growth potential.
References
- Pediatric Endocrine Society. Short Stature: A Guide for Families. Reviews growth charts, growth velocity, familial short stature, constitutional growth delay, and indications for additional evaluation.
- Pediatric Endocrine Society. Child With Suspected Short Stature. Referral guidance outlining growth patterns, laboratory testing, bone age, and clinical findings warranting endocrine referral.
- Endocrine Society. Growth and Short Stature. Reviews growth velocity, causes of short stature, laboratory evaluation, bone age, and additional testing for suspected growth hormone deficiency.
- Pediatric Endocrine Society. Constitutional Growth Delay and Familial Short Stature. Reviews normal variants of childhood short stature and delayed skeletal maturation.
- Diaz A, Ayala Castro L, Carrillo-Iregui A. Short Stature for the General Pediatrician. Pediatrics in Review. 2025;46(6):304–316. Reviews growth charts, bone age, etiologies of short stature, and indications for treatment.
- Endocrine Society. Growth Hormone Deficiency. Reviews presentation, diagnosis, growth failure, and evaluation of childhood GH deficiency.
Devin Stone
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Frequently Asked Questions
Child Growth Clinic FAQs
There is no single minimum age. Evaluation may be appropriate whenever a child has abnormal growth velocity, significant short stature, declining percentiles, lack of expected catch-up growth, or another concerning pattern. The Pediatric Endocrine Society recommends referral consideration for height below the third percentile, abnormal growth velocity after age 3, or height substantially below family expectations.
No. A child who is dropping rapidly from a higher percentile can deserve evaluation even before reaching the fifth percentile. Growth trajectory matters.
There isn't one universal test. Historical growth data may be more valuable than any single laboratory value. Growth velocity, family height, puberty, bone age, and selected labs work together.
Not necessarily, although bone age is commonly used when skeletal maturity or remaining growth potential needs clarification.
No. Growth hormone stimulation testing is generally reserved for situations where history, growth pattern, IGF-1/IGFBP-3, bone age, and other findings raise concern for GH deficiency.
No. Many children evaluated for short stature ultimately have a normal growth variant and do not require medication. The AAP's 2025 review notes that only a minority of children with short stature require growth hormone treatment.
Absolutely. Familial short stature, constitutional growth delay, and idiopathic short stature account for many children evaluated for short stature.
Normal laboratory results do not automatically prove that growth is normal. When labs normal but child not growing is a situation where growth velocity, bone age, puberty, genetics, and serial measurements become particularly important.
Not necessarily. "Growth clinic" describes a practice focus, not a specific medical board certification. Depending on the child's needs, care may involve pediatric endocrinology or another clinician with appropriate pediatric growth expertise. Families should ask who evaluates the child, what training they have, and when referrals to pediatric endocrinology are made.
