Eleven case histories, including diagnoses and outcome, are presented of patients who made, or were the subject of, allegations of sexual abuse, but where these allegations were subsequently withdrawn or disproved. How such situations come about is discussed, with special reference to the false memory syndrome, a term made popular by recent media coverage. Given the complexity of this ‘syndrome’, an argument is put forward that diagnostic guidelines be established so that direct studies of its natural history and treatments may be undertaken.