“Just right” feelings, insistence on sameness, and the need for routine — what’s behind them?

Pillar: Understanding the difference

Read time: 7 min read

Some of the most puzzling behaviours parents describe involve a child’s need for things to feel exactly right. Not just right in a practical sense — but right in a way that’s hard to explain, and that causes real distress when it isn’t achieved.

It might look like spending twenty minutes adjusting a schoolbag until it feels perfectly balanced. Needing to touch a doorframe a certain number of times before walking through. Insisting that family members sit in the same seats every single meal. Or becoming inconsolable if a sock seam isn’t positioned exactly so.

These experiences fall into two overlapping but distinct categories: “just right” experiences associated with OCD, and insistence on sameness associated with autism. Understanding which is driving what you’re seeing can make a significant difference to how you respond.

“Just right” experiences in OCD

In OCD, “just right” experiences involve a strong internal sense of incompleteness — something feels wrong, off, or not finished, even when there’s no logical reason for it. The child may not be able to explain what exactly is wrong. They just know that it doesn’t feel right yet.

The compulsion — the repeated adjusting, touching, arranging — is an attempt to reach a state of “rightness” that will relieve the uncomfortable feeling. When it finally feels right, there is a brief sense of relief. But the relief doesn’t last, and the cycle begins again.

Crucially, in OCD the child is usually aware that the need is irrational. They may be frustrated, ashamed, or distressed by it. They would often rather not have to do it. The behaviour is ego-dystonic — it feels alien to their sense of self.

Insistence on sameness in autism

In autism, insistence on sameness is different in character. It isn’t driven by an intrusive sense of wrongness that needs to be corrected. It’s driven by a need for predictability, and by the genuine comfort that familiar, consistent environments provide.

For many autistic children and adults, the world is a place of sensory and social complexity that requires significant effort to process. Sameness and routine reduce that cognitive load. They make the world feel manageable. When they are disrupted, the distress is real — but it comes from genuine overwhelm, not from a fear of consequences.

An autistic child who insists on the same route to school isn’t trying to neutralise an intrusive thought. They’re trying to preserve a reliable, predictable experience in a world that can feel unpredictable and overwhelming.

How to tell them apart

There’s no infallible rule, but some questions can help:

• Does your child seem relieved, or does the relief only last briefly before the need returns?
• Does your child seem distressed by their own need, or do they simply want things to be the way they want them?
• Is there an underlying fear or worry attached to the need — “something bad will happen if it’s not right”?
• Are there other signs of sensory sensitivity, social communication differences, or intense focused interests?

In practice, many children show features of both — particularly if they have both autism and OCD, which is more common than many people realise. If you’re unsure, that uncertainty itself is a reason to seek a professional assessment.

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This post is part of the Lumara guide series for parents. Lumara Screen is an evidence-informed online screening tool for parents concerned about repetitive behaviours, rituals, or routines in their child. Free to complete — full personalised report £7.99.

Ready to understand what you’re seeing? The Lumara screening tool takes around 10 minutes to complete and gives you a personalised report you can share with your GP or specialist. Free to start — full report £7.99.