Is this OCD or an autistic routine? Rules, rituals and repeated thoughts

The short answer

Autistic routines and OCD compulsions can both involve repetition, rules and distress when interrupted, and they can also occur together. A routine may provide predictability, sensory regulation, enjoyment or an efficient sequence. In OCD, an unwanted thought, image, urge or doubt may drive a mental or physical act intended to reduce distress or prevent a feared outcome. That distinction is not always visible, and children may struggle to explain it. Do not test the difference by forcibly stopping the behaviour. Record the trigger, the child's experience, the rule being followed, the feared consequence, time taken and impact on family life. Seek qualified assessment when the pattern is distressing, expanding, time-consuming or restrictive.

• Repetition alone does not identify OCD or autism.
• OCD commonly involves unwanted obsessions and compulsions used to reduce distress.
• Autistic routines may support predictability, regulation, interest or access.
• A child can be autistic and have OCD, so one must not explain away the other.
• Distressing or restrictive patterns need sensitive professional assessment.