Final answer:
Fictitious disorder is a condition in which an individual consciously or unconsciously produces physical or psychological symptoms to assume the role of a sick person.
Step-by-step explanation:
Fictitious disorder is a condition in which an individual consciously or unconsciously produces physical or psychological symptoms to assume the role of a sick person. The symptoms are intentionally feigned or exaggerated and are not explained by any underlying medical condition. This disorder is categorized as a mental illness and is included in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). It is important to note that the diagnosis and treatment of fictitious disorder should be guided by healthcare professionals.