Malingering and Factitious Disorders

Core Concepts & Spectrum - Decoding Deception

• Malingering: Intentional production or gross exaggeration of physical/psychological symptoms.
  • Motivation: External incentives (e.g., avoiding duty, financial compensation, obtaining drugs).

  ⭐ Malingering is NOT a mental disorder, but a Z-code (other conditions that may be a focus of clinical attention) per DSM-5-TR.

• Factitious Disorder (Imposed on Self / Munchausen Syndrome): Intentional production/feigning of symptoms.
  • Motivation: Internal gain (sick role); external incentives absent.
• Factitious Disorder Imposed on Another (by Proxy): Intentional production/feigning of symptoms in another (e.g., child by caregiver).
  • Motivation: Perpetrator assumes sick role by proxy.
• Somatic Symptom Disorder: ≥1 distressing somatic symptoms causing disruption.
  • Excessive thoughts/feelings/behaviors about symptoms. Symptoms not intentionally produced.
• Conversion Disorder (Functional Neurological Symptom Disorder): Altered voluntary motor/sensory function.
  • Incompatible with neurological/medical conditions. Symptoms not intentionally produced.

Malingering - The External Gain Game

• Intentional feigning or gross exaggeration of symptoms for external incentives (secondary gain).
• Conscious, goal-directed behavior, not a mental disorder. Goals: money, avoiding duties/prosecution, drugs.
• 📌 Mnemonic: MALI
  • Money (e.g., disability, insurance)
  • Avoidance (e.g., duty, work, legal trouble)
  • Litigation (e.g., compensation)
  • Inconsistent (symptoms vs. objective findings; poor cooperation)
• Key Clues for Suspicion:
  • Medicolegal context of presentation (e.g., attorney referral, disability claim).

  ⭐ A marked discrepancy between claimed stress/disability and objective findings is a strong indicator of malingering.

  • Poor cooperation during evaluation and non-adherence to prescribed treatment.
  • Antisocial Personality Disorder (ASPD) often coexists.
  • Symptoms may resolve if the external gain is achieved or becomes unattainable.
• Distinction: Factitious Disorder (motivation is internal - to assume the "sick role"), not for external material gain.

Factitious Disorder - The Internal Drama Drive

• Intentional production or feigning of physical or psychological symptoms.
• Motivation: Unconscious need to assume the "sick role"; primary internal psychological gain, not external (e.g., financial).
• Patient is aware of feigning symptoms but unaware of the underlying unconscious motivation.
• 📌 Mnemonic: SICK ROLE
  • Self-induced: Actively causes/exaggerates symptoms.
  • Inconsistent: History/findings often don't align.
  • Covert: Deception hidden from medical staff.
  • Knows-not-why: Unaware of deep psychological reasons.
  • Recurrent: Pattern of multiple hospital/doctor visits.
  • Odd: Atypical, dramatic, or bizarre presentation.
  • Likes hospitals: Seeks medical attention, procedures.
  • Empty: Linked to personality disorders/past trauma.
• Key Forms:
  • Factitious Disorder Imposed on Self: Per DSM-5-TR criteria, characterized by "pseudologia fantastica" (pathological lying), peregrination (doctor/hospital shopping), and often dramatic, vague symptoms. May have "gridiron" abdomen.
  • Factitious Disorder Imposed on Another (FDIA): Current ICD-11 classification for cases involving harm to dependents.

⭐ Factitious Disorder Imposed on Another (FDIA) is a form of abuse with serious legal consequences under BNS provisions for child endangerment and assault.

• Malingering: Intentional feigning for external gain (e.g., drugs, avoid work); not a mental disorder.
• Factitious Disorder: Intentional feigning to assume the sick role; no external gain.
• Key differentiator: Motivation - external incentives (Malingering) vs. sick role (Factitious).
• Malingering often linked to Antisocial Personality Disorder.
• Factitious Disorder Imposed on Another (FDIA): Inducing illness in others, often children.
• Hospital shopping (peregrination) is common in severe Factitious Disorder.