Three-hundred-seventy-one infertile patients underwent hysteroscopic evaluation. The test was performed in an outpatient setting without any form of anesthesia. A comparison has been made among this technique, the hysterosalpingography and ultrasounds: hysteroscopy showed to be more accurate in the evaluation of intracavitary pathology, because of its capability to obtain a direct view of the uterine cavity. We can evaluate hysteroscopically nature, dimension and localization of the lesions. However HSG remains the best technique for the study of tubal factors of infertility. We think that hysteroscopy should be used besides other diagnostic methods, in order to obtain a better evaluation of the infertile patients.