It can be hard to work out what is wrong when a child’s usual way of communicating changes. This study does not diagnose anyone. It offers one calm reminder: pain and discomfort deserve attention.
- Autism traits and behaviour scores explained little of the digestive symptoms reported in this group.
- A change in behaviour can be communication, but it cannot tell us the cause on its own.
- For a personal concern, a qualified health professional can help make sense of what has changed.
Questions you can take with you
You do not need to become an expert. These questions can help you talk with a professional or support provider.
- What has changed, and when did we first notice it?
- How does my child usually show discomfort?
- Would a few notes help us explain this at an appointment?
Want the study details?Sample, method and evidence type
- Children
- 1,093 autistic children
- Information
- Mother-reported questionnaires
- Design
- One point in time
Read on for what was studied, what was found and what remains uncertain.
A physical problem is still a physical problem
When a child cannot easily explain pain, adults can be tempted to look first at behaviour, stress or autism. This study asks for a little more care with that shortcut. It looked at parent reports from 1,093 autistic children about stomachaches, constipation, diarrhoea and bowel accidents.
The researchers found that autism traits, emotional and behaviour scores, sleep and demographic details added only small amounts to their explanation of most digestive symptoms. Other physical complaints, such as headaches, were more closely reported alongside stomachaches. That does not make one symptom the cause of another. It simply says the picture is not well explained by autism scores alone.
Useful as a reminder, not as a diagnosis
The study did not examine children in a clinic, test treatments or identify the medical reasons for symptoms. It also used questionnaires completed by mothers, so it depends on what families noticed and could report.
Still, the practical message is gentle and important: discomfort is worth listening to. A change in behaviour can be communication, but it is not proof that pain is emotional or part of autism. Physical health needs the same thoughtful attention as anyone else’s.
Questions can be simple
Families often know a child’s ordinary patterns very well. Keeping track of what has changed, when it happens and what seems to make it easier or harder can help make a healthcare conversation clearer. The child’s own ways of showing discomfort matter too, whether that is words, signs, pictures, movement or a change in routine.
This is not a checklist for finding a cause at home, and it is not advice to wait things out. For individual concerns, a qualified healthcare professional can help decide what needs attention.
Limitations to keep in view
- This is a cross-sectional questionnaire study, so it cannot show what caused a digestive symptom.
- The reports came from mothers; the study did not include clinical examinations, tests or a child’s own report in the results described here.
- It cannot estimate an individual child’s risk, diagnose a condition or say which care is right for a particular child.
Overall Weak Association Between Gastrointestinal Symptoms and Psychological, Autism, and Demographic Variables in Autistic Children
Rosenthal E, Waschbusch DA, Mayes SD
Autism · 2026
This article provides general information and does not replace individualized medical, psychological or educational advice.