factitious disorder
A psychiatric condition in which a person deliberately produces or feigns physical or psychological symptoms, without obvious external incentives. Used in clinical contexts.
Patients with factitious disorder may fabricate their own symptoms.
詐病 (malingering) involves faking illness for external gain (e.g., money, avoiding work), while 虚偽性障害 is done without obvious external rewards.
Compound of 虚偽 (falsehood, fabrication), 性 (nature, -ity), and 障害 (disorder). A direct translation of the English medical term 'factitious disorder'.