Sexology is the study of normal and abnormal sexual phenomena, as well as the treatment of sexual dysfunctions. Sexual science is at the dawn of its history, with many of its aspects--be they physiological or sociological--still awaiting investigations. It appears that about three-quarters of all cases of sexual dysfunctions can be handled by the general practitioner or by the gynecologist. As for the remaining patients, they should be referred to a psychologist-sexologist or a psychiatrist specialized in sexual therapy. The practitioner has to be careful not to allow himself to be drawn in a situation of uncontrolled psychotherapy. First of all, he must begin with a full and systematic gynecological examination of the patient.