Poisoning as maltreatment

Overview & Definition

A two-year-old keeps being admitted with unexplained drowsiness and seizures that no metabolic, infectious or neurological workup can explain, that happen only at home, and that stop the moment she is on the ward. The question an examiner wants you to hold is not "what rare disease is this?" but "who is producing it?" — because poisoning as maltreatment is a fabrication, not a misfortune. A caregiver is deliberately giving a substance, or withholding one, to harm the child or to manufacture the very illness you are being asked to diagnose. [1] [5]

The working definition is operational and rests on the caregiver's behaviour, not on a single laboratory value. Induced illness exists when a parent or carer fabricates, induces or exaggerates symptoms — by lying about the history, falsifying samples, contaminating lines, or actually administering a substance — in a child who is, in consequence, presented as more ill than they are and subjected to unnecessary investigation and treatment. The harm has two layers: the direct toxic effect of the agent, and the iatrogenic harm of the investigations, surgeries and treatments that follow from a false picture. [6] [10]

Two subtypes overlap in practice but are worth naming separately. Non-accidental poisoning is the deliberate administration of a toxic substance — salt, insulin, sedatives, emetics — with the intent to harm. Fabricated or induced illness, once called Munchausen syndrome by proxy and now medical child abuse or pediatric condition falsification, is the broader pattern in which the caregiver produces symptoms to live the medical role through the child. Poisoning is the induced, most dangerous edge of that spectrum. [2] [5]

Deep technique on inflicted physical injury lives on the abusive-head-trauma and physical-abuse leaves, neglect on its own leaf, and mandatory reporting on the protection-frameworks leaf. This page owns poisoning as maltreatment — non-accidental poisoning and the induced-illiness subtype — with the toxidrome, workup, separation test, and the safeguarding conversion as the focus. [6] [9]

References12Show ledgerHide ledger

1. [1]Rosenberg DA Web of deceit: a literature review of Munchausen syndrome by proxy Child Abuse Negl, 1987.PMID 3322516
2. [2]McClure RJ, Davis PM, Meadow SR, Sibert JR Epidemiology of Munchausen syndrome by proxy, non-accidental poisoning, and non-accidental suffocation Arch Dis Child, 1996.PMID 8813872
3. [3]Meadow R Non-accidental salt poisoning Arch Dis Child, 1993.PMID 8503665
4. [4]Davis P, McClure RJ, Rolfe K, Chessman N, Pearson S, Sibert JR 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
5. [5]Sheridan MS The deceit continues: an updated literature review of Munchausen Syndrome by Proxy Child Abuse Negl, 2003.PMID 12686328
6. [6]Bass C, Glaser D Early recognition and management of fabricated or induced illness in children Lancet, 2014.PMID 24612863
7. [7]Glaser D, Davis P For debate: Forty years of fabricated or induced illness (FII): where next for paediatricians? Paper 2: Management of perplexing presentations including FII Arch Dis Child, 2019.PMID 29618483
8. [8]Tully J, Hopkins O, Smith A, Williams K Fabricated or induced illness in children: A guide for Australian health-care practitioners J Paediatr Child Health, 2021.PMID 34310788
9. [9]Hobbs CJ, Bilo RA Nonaccidental trauma: clinical aspects and epidemiology of child abuse Pediatr Radiol, 2009.PMID 19198825
10. [10]Meadow R What is, and what is not, 'Munchausen syndrome by proxy'? Arch Dis Child, 1995.PMID 7618944
11. [11]Gomila I, López-Corominas V, Pellegrini M, et al. Alimemazine poisoning as evidence of Munchausen syndrome by proxy: A pediatric case report Forensic Sci Int, 2016.PMID 27567044
12. [12]Focardi M, Guerini M, Defraia B, Nanni L, Grifoni R, Castellini G Medical Child Abuse: A Retrospective Analysis from a Tertiary Pediatric Hospital's Childhood and Adolescent Abuse Group Children (Basel), 2025.PMID 41300691