Autism and OCD: Telling Them Apart and How to Help
Autistic routines vs OCD compulsions
This is the question most parents have, and it matters because the response is different.
- Autistic routines, stimming and special interests are usually wanted — they bring comfort, joy, focus or calm. Distress comes if they're interrupted because something soothing has been taken away.
- OCD compulsions are unwanted. They're done to relieve the anxiety caused by distressing, intrusive thoughts ("if I don't do this, something bad will happen"). They bring short-lived relief, not pleasure, and the child often wishes they could stop.
So ask: does this bring my child comfort and joy, or does it seem driven by fear and leave them distressed? That distinction guides whether it's a routine to respect or possible OCD to get help with.
Signs of OCD in an autistic child
OCD can hide behind autistic traits, so look for:
- Recurrent distressing thoughts — about contamination/germs, harm, things being 'wrong', symmetry, or bad things happening.
- Rituals to relieve anxiety — repeated washing, checking, counting, ordering, repeating actions or seeking reassurance.
- Distress and time — the behaviour takes up lots of time and causes real distress, especially if blocked.
- A driven, anxious quality — it doesn't look like enjoyment.
- Reassurance-seeking — asking the same worried question over and over.
One or two rituals aren't automatically OCD; it's the distress, the unwanted nature, and the impact on daily life that point to it.
How to support your child
- Don't dismiss it, and don't force it to stop abruptly — both increase anxiety.
- Stay calm and reassuring without endlessly answering the same worried question (gentle, consistent responses help more than escalating reassurance).
- Reduce family 'accommodation' gradually — slowly stepping back from doing the rituals for them, with support, rather than overnight.
- Keep a calm, predictable routine to lower overall anxiety.
- Seek a professional assessment. Adapted CBT, in particular a form called exposure and response prevention (ERP), can really help; sometimes a doctor will discuss medication for older children.
Distinguishing OCD from autism, and treating it, often needs a professional who understands both.
Frequently asked questions
How can I tell if it's autism or OCD?
Ask whether the behaviour brings comfort or is driven by fear. Autistic routines and stims are usually wanted and soothing; OCD compulsions are unwanted, done to relieve distressing thoughts, and the child often wishes they could stop.
Is OCD common in autistic children?
OCD occurs more often in autistic children than in the general population, though it can be under-recognised because it's mistaken for autistic routines. A professional who understands both can help tell them apart.
Should I stop my child's rituals?
Not by force — that tends to spike anxiety. With OCD, the aim is to reduce the rituals gradually and with professional support (often ERP). With comforting autistic routines, there's usually no need to stop them at all.
Can OCD be treated in autistic children?
Yes. Adapted CBT, especially exposure and response prevention (ERP), helps many children, sometimes alongside medication for older children. Ask for a therapist experienced with autistic young people.
How this page was reviewed
APG Parent Review Panel
Parent reviewer
APG Clinical Review
Clinical psychologist (child)
Sources
- Obsessive compulsive disorder (OCD) — NHS
- Anxiety and OCD in autistic children — Raising Children Network
- Mental health and autism — American Academy of Pediatrics (AAP)
Last reviewed 1 June 2026. Information is rewritten in plain language from reputable sources. Reviewer names are role-based placeholders for this template and should be replaced with your named reviewers before launch.
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Not medical advice. This article is general information, not a substitute for professional assessment. Every child is different — always talk to a qualified professional about your individual child.