A variety of aetiological factors have been suggested as predisposing men to psychogenic erectile dysfunction (ED). One issue that has been repeatedly identified is holding dysfunctional beliefs about normal male sexual functioning ('male myths' - MMs). Past research found that those with a sexual dysfunction are more likely to believe in MMs. However, there was no distinction between whether these beliefs were the cause or result of having a sexual dysfunction. We sought to establish whether holding dysfunctional beliefs is a psychological predisposing factor for those with psychogenic ED. A total of 91 men (40 - organic ED, 24 - psychogenic ED and 27 controls) completed measures to establish their sexual functioning and beliefs in a number of suggested MM. Individuals with organic and psychogenic ED did not differ in their level of belief in MM but both groups differed significantly from controls. The results suggest that subscribing to MMs is a result, not the cause, of psychogenic ED.