Definition of Histrionic personality disorder:

Histrionic personality disorder is a condition in which people act in a very emotional and dramatic way that draws attention to themselves.

Causes, incidence, and risk factors:

The cause of this disorder is unknown. Both genes and early childhood events are thought to contribute. It occurs more often in women than in men, although it may be diagnosed more often in women because attention-seeking and sexual forwardness are less socially acceptable for women.

Histrionic personality disorder usually begins in early adulthood.