When OCD and Autism Overlap

Obsessive-compulsive disorder (OCD) and autism spectrum disorder (ASD) are distinct conditions, but their clinical presentations often overlap in ways that can complicate diagnosis and treatment. Repetitive behaviors, rigidity, sensory sensitivities, intolerance of uncertainty, and social challenges can appear in both conditions. Yet despite these similarities, the underlying drivers and, therefore, the appropriate interventions may be very different.

Complicating matters further, co-occurring OCD and ASD are more common than many clinicians realize. Research continues to demonstrate elevated rates of OCD among autistic individuals and higher rates of autism among those with OCD. As awareness grows, clinicians are increasingly encountering patients whose symptoms cannot be fully explained by either diagnosis alone.

“One behavior can look nearly identical in two different people but serve completely different functions,” explains Jon Hershfield, LCMFT, of Sheppard Pratt’s Center for OCD and Anxiety. A patient who repeatedly seeks reassurance, follows rigid routines, or rehearses conversations may appear to have OCD. However, those same behaviors may reflect sensory regulation needs, differences in social communication, or adaptive coping strategies associated with autism.

This diagnostic complexity creates two common challenges: masking and overshadowing. Individuals who are highly skilled at masking may conceal autistic traits, leading clinicians to focus solely on OCD symptoms. Conversely, behaviors attributed to autism may overshadow underlying OCD, delaying recognition of intrusive obsessions and compulsions that require targeted treatment.

The distinction is critical because treatment approaches differ significantly.

For OCD, evidence-based treatment often centers on exposure and response prevention (ERP), which helps patients gradually confront feared situations while resisting compulsive behaviors. For autistic individuals, however, accommodations may be necessary to support communication, sensory regulation, learning styles, and emotional processing.  

“If clinicians treat every repetitive behavior as OCD, they risk asking patients to suppress strategies that are helping them navigate the world,” says Hershfield. “That can be ineffective at best and harmful at worst.”

According to Sara Uram, LCSW-C, neurodivergent-affirming care requires clinicians to understand not only what behaviors are occurring but also why they are occurring. Treatment may involve more direct communication, visual supports, structured check-ins, sensory accommodations, scaffolding supports, skill building, family involvement, and additional repetition to help patients generalize skills across settings.

For patients with both ASD and OCD, effective care often requires an interdisciplinary approach. At The Retreat by Sheppard Pratt, clinicians from the Center for Autism work alongside OCD specialists and psychiatrists to conduct comprehensive assessments and develop integrated treatment plans. The team collaboratively determines which symptoms are driven by OCD, which reflect autism, and how interventions can be adapted to address both conditions simultaneously.

“Treatment is most effective when we understand the whole person,” says Michael Young, MD, DFAPA. “A clear diagnostic formulation allows us to provide care that addresses each condition appropriately and avoids missing critical pieces of the clinical picture.”

As clinicians encounter increasing numbers of patients with co-occurring OCD and ASD, the need for expertise across both conditions has never been greater. Accurate diagnosis, individualized treatment planning, and neurodivergent-affirming care are essential to improving outcomes for this complex and often underserved population.