Psych · Forensic psychiatry — fabricated or induced illness
Fabricated or induced illness (Munchausen by proxy)
Also known as Munchausen syndrome by proxy · Munchausen by proxy · Fabricated or induced illness · FII · Factitious disorder imposed on another · FDIA · Medical child abuse · Caregiver-fabricated illness · Perplexing presentations · Illness induction syndrome
Exam-exhaustive fellowship reference on fabricated or induced illness (FII), medical child abuse, caregiver-fabricated illness, and factitious disorder imposed on another (FDIA): terminology map from Meadow MSBP through RCPCH and AAP frameworks, epidemiology, perpetrator psychopathology, recognition red flags, multi-agency safeguarding, covert surveillance ethics principles, differential diagnosis, forensic assessment, child and caregiver management, and court interfaces without invented statute numbers. FRANZCP-primary, globally tagged.
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Target exams
Red flags
- Unexplained deterioration, apnoea, or seizure-like events occurring only when a single caregiver has unsupervised access — treat as high-acuity safeguarding concern until multi-source chronology is complete
- Laboratory, toxicology, or sample results incompatible with physiology or prescribed treatment — secure chain of custody and notify senior/safeguarding pathways
- Evidence or strong suspicion of active induction (poisoning, suffocation, contamination) — immediate child safety, restrict unsupervised access under local authority, medical stabilisation
- Sibling unexplained illness, unexpected death, or repeated ALTE/BRUE pattern in same household — expand protection plan beyond the index child
- Caregiver resists negative workups, demands invasive procedures, or removes child when fabrication is questioned — do not confront alone; escalate multi-agency plan
- Premature discharge or doctor-shopping across hospitals after concerns raised — information-share under local lawful safeguarding frameworks without waiting for FDIA diagnostic certainty
Meet the child
A four-year-old has been admitted eleven times in two years for "seizures" that no member of staff has ever witnessed. Three EEGs are normal. She is on two anticonvulsants, has a gastrostomy, and has had two general anaesthetics for endoscopy.[2][3][4]
Her mother gives a fluent, precise history and is well liked on the ward. Overnight, while her mother sleeps in the parents' room, the child has no events at all — for the first time in the record. The registrar writes: "mother possibly MSBP?"[4][14]
Two things are now true and they must be held at the same time: this child may be being harmed, and nobody in this hospital is yet in a position to say by whom or how. Everything below is about acting properly on the first without pre-empting the second.[4][17][18]
References20ShowHide
- [1]Meadow R Munchausen syndrome by proxy. The hinterland of child abuse Lancet, 1977.PMID 69945
- [2]Rosenberg DA Web of deceit: a literature review of Munchausen syndrome by proxy Child Abuse Negl, 1987.PMID 3322516
- [3]Sheridan MS The deceit continues: an updated literature review of Munchausen Syndrome by Proxy Child Abuse Negl, 2003.PMID 12686328
- [4]Bass C, Glaser D Early recognition and management of fabricated or induced illness in children Lancet, 2014.PMID 24612863
- [5]McClure RJ, Davis PM, Meadow SR, et al. Epidemiology of Munchausen syndrome by proxy, non-accidental poisoning, and non-accidental suffocation Arch Dis Child, 1996.PMID 8813872
- [6]Davis P, McClure RJ, Rolfe K, et al. Procedures, placement, and risks of further abuse after Munchausen syndrome by proxy, non-accidental poisoning, and non-accidental suffocation Arch Dis Child, 1998.PMID 9613350
- [7]Bools C, Neale B, Meadow R Munchausen syndrome by proxy: a study of psychopathology Child Abuse Negl, 1994.PMID 8000908
- [8]Bools CN, Neale BA, Meadow SR Follow up of victims of fabricated illness (Munchausen syndrome by proxy) Arch Dis Child, 1993.PMID 8285772
- [9]Bass C, Jones D Psychopathology of perpetrators of fabricated or induced illness in children: case series Br J Psychiatry, 2011.PMID 21804147
- [10]Yates G, Bass C The perpetrators of medical child abuse (Munchausen Syndrome by Proxy) - A systematic review of 796 cases Child Abuse Negl, 2017.PMID 28750264
- [11]Flaherty EG, Macmillan HL Caregiver-fabricated illness in a child: a manifestation of child maltreatment Pediatrics, 2013.PMID 23979088
- [12]Stirling J Jr Beyond Munchausen syndrome by proxy: identification and treatment of child abuse in a medical setting Pediatrics, 2007.PMID 17473106
- [13]Ayoub CC, Alexander R, Beck D, et al. Position paper: definitional issues in Munchausen by proxy Child Maltreat, 2002.PMID 12020066
- [14]Sanders MJ, Bursch B Forensic assessment of illness falsification, Munchausen by proxy, and factitious disorder, NOS Child Maltreat, 2002.PMID 12020067
- [15]Sanders MJ, Bursch B Psychological Treatment of Factitious Disorder Imposed on Another/Munchausen by Proxy Abuse J Clin Psychol Med Settings, 2020.PMID 31089919
- [16]Bursch B, Emerson ND, Sanders MJ Evaluation and Management of Factitious Disorder Imposed on Another Psychiatr Clin North Am, 2021.PMID 31612305
- [17]Wear KR, Li S Guideline review: RCPCH perplexing presentations, fabricated or induced illness in children guidance 2021 Arch Dis Child Educ Pract Ed, 2022.PMID 34728544
- [18]Tully J, Hopkins O, Smith A, et al. Fabricated or induced illness in children: A guide for Australian health-care practitioners J Paediatr Child Health, 2021.PMID 34310788
- [19]Abdurrachid N, Gama Marques J Munchausen syndrome by proxy (MSBP): a review regarding perpetrators of factitious disorder imposed on another (FDIA) CNS Spectr, 2022.PMID 32772954
- [20]Meadow R What is, and what is not, 'Munchausen syndrome by proxy'? Arch Dis Child, 1995.PMID 7618944