Factitious Disorder

Factitious disorder is a serious mental disorder in which someone deceives others by appearing sick, by purposely getting sick or by self-injury. Factitious disorder also can happen when family members or caregivers falsely present others, such as children, as being ill, injured or impaired.


Cluster Number:
Wiki Number: W081
Diagnosis: Factitious Disorder (Munchausen Syndrome for self) and (Munchausen symptome by proxy for another)
US Patients:
World Patients:
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Age Onset:
Brain Area:
Symptoms: person wanting a hospital stay pretends or exaggerates an illness even by contaminating samples, absesses,
Progression: Can become periodically or chronic as people age.
Causes: not malicious, but subconsciously wanting the attention they or another sick person got while hospitalized
Medications: SSRIs for mood stabilizers or antipsychotics


The world-wide medical research
reports chosen for each diagnosis 

Clicking each title opens the
PubMed article’s summary-abstract.

  • Gaslighting in alleged assault ascertained as Munchausen syndrome transcending to malingering in highly counterintuitive self inflicted acid burns
    by M Chauhan on October 16, 2021

    A factitious disorder leading to the self-infliction of highly counter-intuitive burns was diagnosed in a middle-aged female. The injuries were otherwise alleged to have been sustained by assault inflicted upon her by an unknown person. The case was diagnosed by medico-legal interpretation of injuries, in spite of a highly deceptive and concocted history by the patient and her husband. The entity was unique in being associated with magnificent primary, secondary and tertiary gains. The...

  • Hyperthyroidism in adolescents
    by Marek Niedziela on October 1, 2021

    The term 'hyperthyroidism' refers to a form of thyrotoxicosis due to inappropriately high synthesis and secretion of thyroid hormone(s) by the thyroid. The leading cause of hyperthyroidism in adolescents is Graves' disease (GD); however, one should also consider other potential causes, such as toxic nodular goiter (single or multinodular) and other rare disorders leading to excessive production and release of thyroid hormones. The term 'thyrotoxicosis' refers to a clinical state resulting from...

  • Factitious Gastrointestinal Bleeding: A Case Series and Review
    by Michael Mullarkey on September 23, 2021

    Factitious gastrointestinal bleeding (GIB) is a manifestation of factitious disorder (FD) wherein patients feign GIB in the absence of external gain. As it can be a challenging diagnosis to make, factitious GIB often leads to multiple tests, exposure to contrast agents and radiation, invasive endoscopic and surgical procedures, an increased risk of iatrogenic complications, and increased healthcare costs. Patients who feign GIB often demonstrate characteristic behaviors that may go unnoticed...

  • "Somatic symptom disorders" in adolescence. A systematic review of the recent literature
    by M Ludot on September 20, 2021

    CONCLUSIONS: Only nine articles included "somatic symptom disorder" in their titles, despite a terminology valued by many authors (compared to "somatoform disorders" from the DSM-IV). The heterogeneity of terminologies, case reports and explanatory models witness a lack of connexions between medical specialties. This could explain in part the wandering of adolescents and their families in the health care system. It could also contribute to the delay before diagnosis, especially when neurological...