A person who is excessively high in narcissism is said to have narcissistic personality disorder (NPD), which is a diagnosable mental illness. A person with narcissistic traits may be mildly self ...

They refer to two distinct personality disorders: narcissistic personality disorder (NPD) and antisocial personality disorder (ASPD). Both conditions can cause a person to be manipulative ...

Subtypes of narcissistic personality disorder (NPD) may include grandiose NPD and vulnerable NPD. Alternatively, people may also refer to “grandiosity” and “vulnerability” in NPD.