Somatic Symptom and Related Disorders
Factitious Disorder
Factitious Disorder involves falsifying physical or psychological signs or symptoms, inducing injury or disease, and identified deception. The person presents themself or another person as ill, injured, or impaired.
Behaviour can occur even without an obvious external reward, but the motivations are often complex or unclear, and there is no need to guess at a specific motive. When the symptoms are imposed on a child or dependent, it is a matter of potential abuse and the immediate safety of the victim comes first.
What Is Factitious Disorder?
In the self-imposed form, the person may report false symptoms, alter specimens, interfere with injuries, or cause disease. In the "imposed on another" form, the perpetrator misrepresents or causes symptoms in another person and presents them as a patient. Diagnosis in the second form concerns the perpetrator; the target person is assessed for abuse and for any actual medical condition. Actual disease may co-occur and should not be overlooked.
Main characteristics and warning signs
No single finding proves the disorder; what matters is a documented pattern:
- Inconsistencies between reported symptoms, observation, laboratory data and disease course.
- Symptoms that appear or worsen only under specific supervision or after interventions that are not medically explained.
- Falsifying history or medical records, interfering with examinations or intentionally causing symptoms.
- Multiple visits to different services with fragmented information and difficulty verifying history.
- When imposed on another person: repeated unexplained illness or improvement when the potential victim is safely removed from a particular caregiver.
- Real illness or injury co-occurring with malingering and still needing full care.
How It Is Diagnosed
Diagnosis requires objective documentation, coordination among professionals, and careful differential diagnosis; it must not be based on one clinician's dislike or unsupported suspicion.
- There is falsification of physical or psychological signs or symptoms, or induction of injury or disease, associated with identified deception.
- The person presents themself or another as ill, disabled or injured.
- Deceptive behaviour is evident even without obvious extrinsic rewards; the complete absence of any potential benefit need not be proven.
- The behaviour is not better explained by Delusional Disorder or another psychotic disorder.
- In the form imposed on another, the diagnosis applies to the perpetrator and the safety and medical evaluation of the victim is treated separately.
How It Can Affect Daily Life
Inducing or faking symptoms can lead to unnecessary tests, operations, drugs, infections, disability or death. It affects trust with the healthcare team and creates great risk when information is fragmented. For the targeted person it can mean abuse, school absences, isolation and long-term effects. The use of stigmatizing designations makes objective assessment difficult and does not protect anyone.
What we know about motives and factors
Deeper motives may be complex or unclear and are not a prerequisite for diagnosis. There is no standard motive that explains all cases. Previous trauma, hospitalizations, or mental difficulties may be present in some individuals, but they do not prove or justify the behaviour. The assessment focuses on documented practice, harm and safety.
Similar or different situations
The presence of deliberate deception and the context of potential rewards are important:
- In somatic symptom disorder the symptoms and distress are not intentionally faked.
- In feigning external benefit, the central goal is usually a clear external reward, such as money, work avoidance, or legal advantage; it is not a mental diagnosis.
- In a psychotic disorder, a person may sincerely believe an inaccurate explanation; this differs from identified intentional deception.
- Medically unexplained or rare disease is not evidence of falsification. Real disease must be investigated objectively.
- Causing illness in another is assessed as potential abuse, regardless of whether the perpetrator ultimately meets all psychiatric criteria.
Prevention, harm reduction and protection
The plan needs coordinated medical, psychiatric, social and, when necessary, protective or legal management.
- A care coordinator and shared, accurate record reduce duplicate testing and fragmentation, while respecting privacy and legal processes.
- The team treats every real disease, limits unnecessary and dangerous interventions and objectively monitors the course.
- The approach to the individual is firm and non-humiliating, with clear boundaries and offering mental health care when it can be done safely.
- In the form imposed on another, the psychiatric help of the perpetrator does not replace the protection, independent examination and continuous monitoring of the potential victim.
- Psychotherapy can be aimed at co-occurring difficulties and reducing risky behaviours, but response varies and there are no guarantees.
When to Seek Help
If you are a professional, do not attempt to confirm or address such a suspicion yourself: record objective evidence, coordinate multidisciplinary assessment, and follow applicable safeguards. If you suspect that a child, an older adult or a dependent adult is being poisoned, injured, subjected to unnecessary procedures or prevented from safe care, immediate protective and medical intervention is needed.
Frequently Asked Questions
Is Factitious Disorder the same as lying for financial gain?
No. In Factitious Disorder, there is identified falsification or induction of illness even without an obvious external reward. Feigning symptoms for a clear external benefit is assessed as malingering instead.
Does it mean all symptoms are fake?
A genuine illness or injury may co-occur with factitious behaviour and still requires appropriate medical care.
Who gets the diagnosis when the symptoms are imposed on another?
The diagnosis concerns the person who causes or falsifies the disease. The target person is assessed separately as a potential victim of abuse and for any actual medical harm.