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Psych TopicsForensic psychiatry — morbid jealousy and erotomania

Psych · Forensic psychiatry — morbid jealousy and erotomania

Morbid jealousy and erotomania

Also known as Pathological jealousy · Delusional jealousy · Othello syndrome · Jealous type delusional disorder · Erotomania · de Clérambault syndrome · Erotomanic delusional disorder · Psychotic jealousy · Morbid jealousy forensic · Love delusion stalking

Exam-exhaustive fellowship reference on morbid (pathological/delusional) jealousy including Othello syndrome and erotomania (de Clérambault): DSM-5-TR/ICD-11 mapping, primary versus secondary causes, partner and third-party risk, stalking interface, assessment, pharmacotherapy and psychological management, organic and alcohol pathways, and forensic report principles. FRANZCP-primary, globally tagged.

medium16 referencesUpdated 26 July 202615 min readVerification in progress

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FRANZCPMRCPsychABPNMD-DNBNEET-SS

Red flags

  • Partner or family reports escalating accusations, surveillance, weapons access, or fear of assault — treat as dynamic high risk until safety secured
  • Delusional jealousy with prior intimate-partner violence, alcohol intoxication, and refusal of separation — homicide and homicide-suicide pathway concern
  • Erotomanic fixation on a clinician, public figure, or neighbour with approach behaviour, gifts, or threats to 'rivals' — boundary, security, and multi-agency plan
  • Late-onset Othello picture with cognitive decline or new dopamine-agonist therapy — urgent organic and medication review
  • Couples therapy requested while active delusion and violence risk are untreated — do not collude; prioritise victim safety
  • Court report requested after assault without multi-source brief — do not equate diagnosis with mental-impairment defence
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Your progress

Saved on this device.

Practise this topic10 MCQs with explanations

Target exams

FRANZCPMRCPsychABPNMD-DNBNEET-SS

Red flags

  • Partner or family reports escalating accusations, surveillance, weapons access, or fear of assault — treat as dynamic high risk until safety secured
  • Delusional jealousy with prior intimate-partner violence, alcohol intoxication, and refusal of separation — homicide and homicide-suicide pathway concern
  • Erotomanic fixation on a clinician, public figure, or neighbour with approach behaviour, gifts, or threats to 'rivals' — boundary, security, and multi-agency plan
  • Late-onset Othello picture with cognitive decline or new dopamine-agonist therapy — urgent organic and medication review
  • Couples therapy requested while active delusion and violence risk are untreated — do not collude; prioritise victim safety
  • Court report requested after assault without multi-source brief — do not equate diagnosis with mental-impairment defence
The one-line answer

Two monothematic delusions with one shared rule: Othello is the fixed belief that a partner is unfaithful, de Clérambault the fixed belief that another person is secretly in love with you — and in both, the person at risk is not the one sitting in your chair. Say primary or secondary in your first sentence, secure the victim before you argue with the belief, and never let a diagnosis do a court's work.[1][3][5][7]

Meet the patient

A 52-year-old man attends with his wife. For four months he has read her phone nightly, checked the odometer against her stated route, and woken her at 2am to "confess". No psychiatric history. A bottle of wine most nights.[1][4]

She answers each of your questions by looking at him first. When you offer to see her alone, he says that will not be necessary. Three weeks ago she had a black eye that a cupboard door explained.[5][6]

Two questions are now live and the marks are split evenly between them: is the belief delusional, and is she safe tonight? Every section below exists to answer one or both.[1][5]

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References16ShowHide
  1. [1]Mullen PE Jealousy: the pathology of passion Br J Psychiatry, 1991.PMID 1801774
  2. [2]Mullen PE, Martin J Jealousy: a community study Br J Psychiatry, 1994.PMID 8137108
  3. [3]Mullen PE, Pathé M The pathological extensions of love Br J Psychiatry, 1994.PMID 7866676
  4. [4]Soyka M, Schmidt P Prevalence of delusional jealousy in psychiatric disorders J Forensic Sci, 2011.PMID 21265838
  5. [5]Silva AJ, Ferrari MM, Leong GB, et al. The dangerousness of persons with delusional jealousy J Am Acad Psychiatry Law, 1998.PMID 9894217
  6. [6]Silva JA, Derecho DV, Leong GB, et al. Stalking behavior in delusional jealousy J Forensic Sci, 2000.PMID 10641922
  7. [7]Segal JH Erotomania revisited: from Kraepelin to DSM-III-R Am J Psychiatry, 1989.PMID 2675641
  8. [8]Kennedy N, McDonough M, Kelly B, et al. Erotomania revisited: clinical course and treatment Compr Psychiatry, 2002.PMID 11788912
  9. [9]Zona MA, Sharma KK, Lane J A comparative study of erotomanic and obsessional subjects in a forensic sample J Forensic Sci, 1993.PMID 8355005
  10. [10]Mullen PE, Pathé M, Purcell R, et al. Study of stalkers Am J Psychiatry, 1999.PMID 10450267
  11. [11]Mullen PE, Mackenzie R, Ogloff JR, et al. Assessing and managing the risks in the stalking situation J Am Acad Psychiatry Law, 2006.PMID 17185471
  12. [12]McEwan TE, Mullen PE, MacKenzie RD, et al. Violence in stalking situations Psychol Med, 2009.PMID 19215627
  13. [13]Manschreck TC, Khan NL Recent advances in the treatment of delusional disorder Can J Psychiatry, 2006.PMID 16989110
  14. [14]González-Rodríguez A, Monreal JA, Natividad M, et al. Seventy Years of Treating Delusional Disorder with Antipsychotics: A Historical Perspective Biomedicines, 2022.PMID 36552037
  15. [15]Cipriani G, Vedovello M, Nuti A, et al. Dangerous passion: Othello syndrome and dementia Psychiatry Clin Neurosci, 2012.PMID 23066764
  16. [16]Oram S, Flynn SM, Shaw J, et al. Mental illness and domestic homicide: a population-based descriptive study Psychiatr Serv, 2013.PMID 23820784

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