Overlap between Obsessive--compulsive Disorder, Psychosis, and Autism Spectrum Disorders.

ASD is a neurodevelopmental disorder characterized by impairments in social communication and social interaction, repetitive and stereotyped behaviours, and/or sensory aberrations. OCD is characterized by the presence of obsessions and/or compulsions. Schizophrenia consists of delusions, hallucinations, negative and cognitive symptoms. Children often present with overlapping symptoms and complex psychopathologies and adolescence is often the period where these symptoms get heightened or get noticed. Furthermore, some psychiatric disorders like OCD, ASD and psychosis often have overlaps with confusing presentations. We present a case of a 15year old male child who presented with overlapping symptoms. [ABSTRACT FROM AUTHOR]