Definition and epidemiology of ejaculatory dysfunction

Ejaculatory dysfunction is a male sexual disorder and comprises premature ejaculation, delayed ejaculation, anorgasmia, anejaculation and retrograde ejaculation. The definition of premature ejaculation is based on three essential criteria: brief ejaculatory latency, loss of control and psychological distress for the patient and/or his partner. Comparison of studies on premature ejaculation is difficult due to the absence of physiological data in the general population on ejaculatory latency, the absence of a precise definition of premature ejaculation and the absence of a questionnaire or standardized and validated methods of evaluation. However, the rare studies performed since 1990 show high prevalences: about 10% of men often or always experience premature ejaculation. The prevalence of delayed ejaculation and anorgasmia is estimated to be between 5 and 10%. Ejaculatory dysfunctions are therefore significant health problems with consequences on sexuality, fertility and quality of life.