Autism has been split into four types. Which one am I?

Should I work out which of the four types I am?

No. In 2025, Litman and colleagues analysed 239 characteristics in 5,392 autistic children, found four groups and then looked at genetic differences between them. It’s not a quiz where you read four descriptions and pick the one that fits.

For parents, the practical answer is this: a group name on its own can’t tell you which class your child should be in or which intervention they need. For adults, a model built on children’s data can’t be used to assess yourself. Before it could be used for individuals, it would need to be tested for that specific purpose and group of people.

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Where did the four groups come from?

The researchers put many kinds of information about each child into a model, looked for traits that tended to show up together, and grouped similar combinations. It looked at a wide range of information, not just speech or school results.

The paper’s names for the four groups roughly describe: mainly social and behavioural difficulties; a mixed picture with developmental delay; broad effects across many areas; and relatively moderate challenges. The names sum up statistical patterns in this sample. They aren’t a way of ranking an individual from mild to severe.

People in the same group still differ. Two children might be in the same group, yet one most needs help with communication while the other is struggling most with sleep and daily care. What help to give still comes down to getting to know each child.

Is this a new diagnostic standard or treatment plan?

The paper proposes groups for research purposes. Publishing it doesn’t mean the diagnostic manuals now include four types, or that any service has started using them. If a news story or product says otherwise, check which official standard they’re talking about.

Genetic differences don’t translate directly into treatment advice either. If someone tells you “your child tested as this type, so they need this training programme,” ask: what tool did you use, who is it designed for, and is there evidence that choosing training this way actually works better? Pointing to this paper doesn’t answer any of those questions.

What should parents do with this news?

There’s no need to tear up what you’re already doing. Look at what’s affecting your child’s life most right now, and whether the help they’re getting is working. If something needs to change, take specific examples to their teacher or a professional, rather than just saying “I think they’re this type.”

Next time you see news about autism types, check two things first: who was studied, and what the research actually tested. Was it children or adults? Is it a statistical grouping or a tool for assessing individuals? Once that’s clear, it’s much easier to tell whether the news really applies to you.