Hysteria is a term used to mean ungovernable emotional excess and can refer to a temporary state of mind or emotion. In the nineteenth century, female hysteria was considered a diagnosable physical illness in women. It is assumed that the basis for diagnosis operated under the belief that women are predisposed to mental and behavioral conditions; an interpretation of sex-related differences in stress responses. In the twentieth century, it shifted to being considered a mental illness. Influential physicians the likes of Sigmund Freud and Jean-Martin Charcot had dedicated research to hysteria patients.
Currently, most physicians do not accept hysteria as a medical diagnosis. Today, psychiatrists may use the term to refer to behavior in which patients "imitate physical or psychological disorders of a kind that draws medical and nursing attention to them", usually as a self-deception rather than an attempt to defraud. The blanket diagnosis of hysteria has been fragmented into myriad medical categories such as epilepsy, histrionic personality disorder, conversion disorders, dissociative disorders, or other medical conditions. Furthermore, lifestyle choices, such as choosing not to wed, are no longer considered symptoms of psychological disorders such as hysteria.