This is a procedure that involves the introduction of a thin telescope-like instrument through the cervix into the uterine cavity. It enables the direct visualization of the uterine cavity and its lining, thereby providing an opportunity to diagnose abnormalities such as polyps, fibroids or adhesions. It is best performed 2 to 7 days following the end of menstruation. Diagnostic hysteroscopy can be performed with general anesthesia in the doctor's office. The procedure is relatively risk free and is significantly less painful than a hysterosalpingogram. All patients suspected of having surface lesions involving the inner lining of the uterus should have a diagnostic hysteroscopy performed.