Some self-help groups for individuals with aberrant sexual interests (e.g., Sexaholics Anonymous and Sex and Love Addicts Anonymous) maintain that a period of "sexual sobriety" is necessary for treatment. The hypothesis was tested that sexual urges during a 30-day period of voluntary abstinence from masturbation would be less frequent and intense than during a period when masturbation was not avoided. Outpatient pedophiles were randomly assigned to either refrain from masturbating or make no attempt to alter their masturbation frequency for a period of 30 days. All participants were crossed over to the other treatment condition at the start of the 2nd month. Sexual urges and behavior were measured using weekly self-reports. A repeated measures ANOVA failed to show a difference in reported intensity of sexual urges, F(7, 91) = 1.15, p = 0.34; masturbation urges, F(7, 91) = 1.73, p = 0.11; adult sex urges, F(7, 91) = 1.82, p = 0.09; or child sex urges, F(7, 91) = 1.58, p = 0.15, in Masturbation Allowed vs. Masturbation Not Allowed conditions. Of 17 participants, 3 (18%) were able to retain completely from masturbating for 1 month, 4 participants (25%) thought it was helpful not to masturbate; 1 participant (7%) thought therapists should recommend avoidance of masturbation. This study suggests that sexual sobriety from masturbation does not aid in the control of pedophilic fantasies. This may be because the technique is ineffective, or because so few participants are willing to engage in it.