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- Factitious disorder is a behavioral disorder characterized by the intentional production/feigning of physical and/or psychological signs and/or symptoms in the absence of clear external rewards.
- Factitious disorder is classified under the Somatic Symptom and Related Disorders section of the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5) .
- When considering this diagnosis, it is important to have a firm understanding of somatization.
- Somatization is the expression of mental phenomena as physical (somatic) symptoms.
- There is a continuum of unconscious/non-volitional display of symptoms (patient unaware of the non-physiologic nature of symptoms) to conscious/volitional display (patient aware of the non-physiologic nature of symptoms).
- Also important is the difference between primary gain (positive internal motivations) vs. secondary gain (positive external motivations).
- Primary Gain Example: A patient feels guilty about not being able to perform a task, but if there is a medical condition justifying this inability, the guilt diminishes.
- Secondary Gain Examples: A patient is allowed to miss work and gets financial compensation as the result of a medical condition.
- Definite evidence of falsification of symptoms for primary gain is factitious disorder and for secondary gain is malingering.