Poor Weight Gain & Stunting in Children

“My child is not gaining enough weight. Is something wrong?”

“My child is much shorter than other children. Could it be stunting?”

Poor weight gain and slow height growth are common concerns among parents. Some children are naturally smaller or shorter because of their family growth pattern. However, persistent poor weight gain or slowing height growth may sometimes indicate inadequate nutrition, feeding difficulties or an underlying medical condition.

What Is Poor Weight Gain?

Poor weight gain, also known as growth faltering, means a child is not gaining weight as expected for their age and growth pattern.

Possible Signs

Weight gain seems slower than before
Weight drops across growth chart percentiles
Poor appetite or very limited food intake
Feeding difficulties
Weight loss

Growth Over Time Matters

A single low weight does not necessarily mean there is a problem. The pattern of growth over time is more important.

What Is Stunting?

Stunting refers to a child being shorter than expected for their age, usually reflecting impaired linear growth over a longer period.

Possible Causes

Inadequate nutrition
Chronic or recurrent illness
Feeding difficulties
Poor absorption of nutrients
Chronic gastrointestinal disease
Other underlying medical conditions

How Is It Assessed?

Stunting is assessed using age- and sex-specific growth standards, rather than simply comparing a child with other children.

“My Child Is Small Like the Parents. Is That Normal?”

It can be.

Genetics have an important influence on a child's height. A child may naturally be smaller or shorter while continuing to grow appropriately.

The paediatrician will consider parental heights, growth velocity and the child's growth chart rather than comparing them with other children alone.

“My Child Is Eating Very Little. Can This Affect Growth?”

Yes.

Persistent inadequate calorie or nutrient intake can affect weight gain and, if prolonged, may eventually affect height growth.

Picky eating, feeding difficulties or excessive milk intake can sometimes contribute to inadequate nutrition.

“How Do You Know If My Child Is Growing Normally?”

The paediatrician will look at weight, height/length and growth over time using an age- and sex-specific growth chart.

Other factors such as nutrition, development, medical history and family growth patterns are also considered.

A child's growth pattern is usually more informative than a single measurement.

When Should Parents Consider an Assessment?

Arrange a paediatric assessment if:

Weight gain is persistently slow
Your child is losing weight
Height or length is falling across growth percentiles
Your child is significantly shorter or lighter than expected
There are feeding difficulties or very restricted food intake
There is persistent vomiting, diarrhoea or other gastrointestinal symptoms
Your child is frequently unwell or unusually tired
You are concerned about your child's overall growth

What Happens During the Assessment?

Growth & Nutrition Review

The paediatrician will review previous weight and height measurements, growth velocity, diet and feeding history.

Medical & Family History

The assessment also considers medical history and family growth patterns.

Further Investigations

Depending on the findings, further assessment may include nutritional evaluation, blood tests or other investigations.

Specialist Support

Referral to a dietitian or paediatric subspecialist may be recommended when indicated.

💡 Take-Home Message

Being small does not always mean something is wrong. What matters is whether your child is growing steadily and following an appropriate growth pattern.

Persistent poor weight gain or slowing height growth deserves proper assessment so that any underlying problem can be identified early.

Frequently Asked Questions

Is my child underweight just because they are smaller than other children?

Not necessarily. Children naturally vary in size, and family genetics can influence height and body size. Growth should be assessed using the child's measurements over time rather than comparison with other children alone.

What is growth faltering?

Growth faltering refers to a child not gaining weight or growing as expected over time. It can have many possible causes, including inadequate nutrition, feeding difficulties or underlying medical conditions.

Does picky eating cause poor weight gain?

It can, particularly when a child's diet is very limited or does not provide enough calories and nutrients. The effect depends on the child's overall dietary intake and growth pattern.

Can poor weight gain affect height?

Persistent inadequate nutrition or an underlying medical condition can affect both weight and height growth. However, the cause needs to be assessed rather than assuming that poor weight gain will automatically affect height.

Does my child need blood tests?

Not every child with slow weight gain or short stature needs blood tests. Investigations are usually considered based on the child's growth pattern, symptoms, medical history and examination findings.

Concerned About Your Child's Growth?

If your child is not gaining weight as expected, is significantly shorter than expected or has ongoing feeding and nutrition concerns, a paediatric assessment can help identify the possible cause.

Southern Child Specialist Clinic in Johor Bahru provides paediatric assessment for growth, weight, nutrition and feeding concerns.

Book a Paediatric Consultation