Update on factitious disorders.

OBJECTIVE

Since factitious disorders entered the official psychiatric nomenclature in DSM-III and DSM-III-R, there has been a proliferation of reports and commentary about this unusual disorder. We present an update of the recent literature.

METHOD

The psychiatric and medical literature was searched. Clinical reports and critical/theoretical papers were reviewed; eighty-five are summarized here.

RESULTS

Available data is descriptive and anecdotal. Reports focus on the following four topics, which are discussed here: 1) diagnostic issues, 2) the newly proposed DSM-IV category of factitious disorder by proxy, 3) epidemiology and course, 4) new developments in treatment and management.

CONCLUSIONS

Factitious disorders are uncommon but serious illnesses that present diagnostic and management dilemmas. Deriving systematic information about these illnesses is a major challenge.