Causes of histrionic personality disorder are unknown. Genes and early childhood events may be responsible. It is diagnosed more often in women than in men. Doctors believe that more men may have the disorder than are diagnosed.

Histrionic personality disorder usually begins by late teens or early 20s.

People with this disorder are usually able to function at a high level and can be successful socially and at work.

Symptoms include:

• Acting or looking overly seductive
• Being easily influenced by other people
• Being overly concerned with their looks
• Being overly dramatic and emotional
• Being overly sensitive to criticism or disapproval
• Believing that relationships are more intimate than they actually are
• Blaming failure or disappointment on others
• Constantly seeking reassurance or approval
• Having a low tolerance for frustration or delayed gratification
• Needing to be the center of attention (self-centeredness)
• Quickly changing emotions, which may seem shallow to others