Factitious dermatitis
Encyclopedia
Factitious dermatitis is a form of factitious disorder
Factitious disorder
Factitious disorders are conditions in which a person acts as if he or she has an illness by deliberately producing, feigning, or exaggerating symptoms. Factitious disorder by proxy is a condition in which a person deliberately produces, feigns, or exaggerates symptoms in a person who is in their...

in which patients will intentionally feign symptoms and produce signs of disease in an attempt to assume the patient role.
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