Impulsive Buying Across Psychiatric Disorders

Introduction to Impulsive Buying

• Impulsive buying can be a symptom of ADHD, bipolar disorder, and borderline personality disorder, but is NOT a characteristic feature of OCD, which is instead defined by obsessions and compulsions aimed at reducing anxiety rather than gratifying impulses 1, 2

OCD: Not Characterized by Impulsive Buying

• OCD involves repetitive behaviors (compulsions) performed in response to obsessions to reduce anxiety or prevent dreaded events, not to achieve gratification 1, 3
• The DSM-5 explicitly distinguishes OCD from "impulses, as in disruptive, impulse-control, and conduct disorders" 2
• Common OCD compulsions include washing/cleaning, checking, mental rituals, and ordering/counting—not shopping or buying 4, 5
• Substance-related and addictive disorders (which would include compulsive buying) have an ego-syntonic, gratifying component that is absent in OCD 6

Critical Pitfalls to Avoid

• Do not diagnose OCD based on repetitive buying behavior alone 6, 2
• The ICD-11 explicitly lists "preoccupation with substances or gambling, as in substance-related and addictive disorders" as conditions that better explain the disturbance than OCD 7
• Compulsive buying has ego-syntonic gratification that fundamentally differs from the ego-dystonic, anxiety-reducing nature of OCD compulsions 6

Borderline Personality Disorder

• Borderline personality disorder involves impulsivity across multiple domains 1