A child does not need to point to the exact place, use the right pain word or score it out of ten for discomfort to be real. Sometimes the first thing a family notices is simply: something is different.

Three things to hold onto
  • A behaviour change can communicate discomfort, but cannot name its cause.
  • Constipation and reflux are among the physical issues worth considering.
  • Persistent, worsening or severe pain needs medical attention.
01

Notice the change

A child may eat less, protect their stomach, sleep differently, avoid the toilet, become more restless, withdraw or have more moments of distress. None of these signs proves stomach pain. Together with context, they can tell you it is time to pay attention.

Think about your child’s own baseline. ‘Different from usual’ is often more informative than comparing them with another child.

02

Make a tiny, useful record

Write down when the change began, bowel movements, food and drink, sleep, medication, where discomfort seems to appear and what helps. A photo or body outline may be easier than spoken questions for some children.

Do not turn meals or toileting into an interrogation. A few calm observations can help a clinician far more than a perfect diary that exhausts everyone.

03

Ask for the body to be considered

NICE specifically lists pain and gastrointestinal disorders among the physical factors that can contribute to distressed behaviour in autistic children. Sleep guidance also names reflux and constipation as possible sources of discomfort.

A professional can look at the whole picture and decide what assessment is appropriate. Avoid starting restrictive diets or treatments based only on online claims; they can create new nutritional or health problems.

04

Do not wait through a red flag

Urgent signs vary by age and country. Seek urgent medical advice if pain is sudden or severe, gets much worse, the abdomen is very painful to touch, there is blood in vomit or stool, the child cannot pass stool or gas, has green vomit, collapses or looks seriously unwell.

If you are worried, trust that concern enough to ask. This guide cannot examine a child and should never be used to rule out urgent care.

Questions you can take with you

To a doctor, school meeting, therapist — or simply a quiet conversation at home.

  • What is different from my child’s usual pattern?
  • Could constipation, reflux, medication or another pain be involved?
  • Which signs would mean we should seek urgent help?
Sources we checked

The guidance underneath this guide

Autism in under 19s: support and managementNICEStomach ache: when to get urgent helpNHSSigns that a baby or toddler may be seriously illNHS

General information, not individual medical advice. A qualified professional can help with your child’s particular situation.