Primary nocturnal enuresis (PNE) is a relatively common condition of childhood (1). According to The ICD-10 Classification of Mental and Behavioural Disorders: Diagnostic Criteria for Research (2), a child is diagnosed with PNE if there is at least one wetting event per month for children seven years of age and older, and the bedwetting is not due to neurological disorders, abnormalities of the urinary tract or epileptic attacks.

The present study compares the effectiveness of alarm therapy and hypnotherapy in achieving dryness, as suggested by Milling and Costantino (3). We also examined the effects of PNE on children's self-esteem and behaviour problems.