OCD and related disorder

• Obsessions


  Intrusive and mostly nonsensical thoughts, images, or urges that the individual tries to resist or eliminate
• Compulsions


  Thoughts or actions used to suppress the obsessions and provide relief
• Tic Disorders


  Common to co-occur in patients with OCD
• Obsessions usually do not involve real life concerns and can include one, irrational, or magical content
• In BDD and Tricho


  The compulsive behavior is limited to hair pulling or distortions in absence of obsessions
• Obsessions and compulsions are not limited to concerns about weight and food
• Compulsions


  Usually preceded by obsessions, tics are often preceded by premonitory sensory urges
• Body Dysmorphic Disorder


  Preoccupation with some imagined defect, imagined ugliness, excessive appearance-related preoccupations and repetitive behaviors that are time-consuming
• Body Dysmorphic Disorder


  Can be co-morbid with eating disorders
• Hoarding


  Difficulty discarding or parting with possessions
• Prader-Willi Syndrome


  • Characterized by severe hypotonia, poor appetite, and feeding difficulties in early infancy, followed in early childhood by excessive eating and gradual development of morbid obesity
• Hoarding is not a direct consequence of neurodevelopmental disorder, nor delusion, nor psychomotor retardation, fatigue, or loss of energy
• Trichotillomania


  Should not be diagnosed when hair removal is performed solely for cosmetic reasons
• Diagnosis will be OCD

  If there is obsession of symmetry
• Someone with ASD


  Could have hair-pulling behaviors when frustrated or angry, so if it's impairing then it can be diagnosed as stereotypic movement disorder
• Note the delusion or hallucination, if then, psychotic disorder
• Excoriation


  Note delusion or tactile hallucination
• In absence of deception, excoriation disorder can be diagnosed if there are repeated attempts to decrease or stop skin picking