Conversion hysteria.

Conversion hysteria differs from hysteria in that it arises suddenly, rather than being a lifelong disorder. It is monosymptomatic rather than polysymptomatic, and is seen in men almost as frequently as in women. La belle indifférence, when present, is a useful clue to diagnosis. Other clues are ambiguity in reporting of the symptoms, medically inconsistent symptoms and hysterical personality features. Treatment may include removing the patient from a stressful environment and removing the "payoff" yielded by the illness. A confrontation with the patient is generally to be avoided.