When to Consider ADHD or Autism Assessment for a Child

Q: Can a child have both ADHD and autism?

Yes. The conditions can co-occur, and assessment should consider both when clinically indicated.

Direct answerAssessment becomes worth considering when a child shows a persistent pattern of attention, activity, communication, sensory or social differences that affects daily functioning and cannot be understood adequately from one situation alone.

Look for patterns over time

Occasional distractibility, social difficulty or strong preferences are common. Assessment becomes more relevant when patterns are persistent, began during development and have a meaningful impact on learning, relationships, home life or wellbeing.

Compare settings carefully

Home and school can look very different. Structure, sensory demand, interests, masking and adult support can all change what other people observe. Differences between settings are information to understand, not a reason to dismiss concerns automatically.

Ask what else could explain the difficulties

Sleep, anxiety, language or learning needs, trauma, physical health and environmental stress can overlap with ADHD or autism presentations. They can also co occur, which is why a broad developmental assessment matters.

Speak with school or relevant professionals

Teacher and SENCO observations can add useful context. A GP, health visitor, school or other professional may also explain local NHS referral routes and support available while waiting.

Choose the assessment question deliberately

If both ADHD and autism are reasonable possibilities, ask whether a combined pathway is appropriate. The aim is not to collect labels but to reach an explanation that improves understanding and support.

Common questions

Should I wait for school to suggest assessment?

No. Parents can raise concerns themselves. School information is useful, but it is not the only route to recognising a need for assessment.

Can a child have both ADHD and autism?

Yes. The conditions can co occur, and assessment should consider both when clinically indicated.

Do we need a diagnosis before asking school for help?

Not always. Education support should consider a child’s needs, although specific processes and legal entitlements vary.

Related services and guides

FCP

Focused Care Psychology Editorial Team

Clinical information is reviewed against current UK guidance and the practice’s stated scope. This article is general education and does not replace personalised clinical, medical, legal, education or employment advice. Read the editorial and corrections policy.

Primary and public sources

Sources checked 2 September 2026. Guidance and public pathways can change.

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When Should a Parent Consider ADHD or Autism Assessment?