Hysteria is thought to involve the unconscious production of symptoms that resemble neurological disorders. However, it is not usually possible to distinguish this from deception, leading some authors to advocate dropping the distinction. In this paper, I argue that deception is not a unitary concept, so that hysteria may indeed involve a form of deception without necessarily the ethical implications of lying. The evidence for and against deception in hysteria is considered, and a taxonomy of deception outlined. The evidence is (...) argued to support deception as a sufficient model for hysteria, though not necessarily in the form of lying, and not such as to exclude other models for much of their behavior. An appreciation of the distinct forms of deception may help clinicians to clarify their relationships with their patients with hysteria, and clarify the distinction from malingering. (shrink)