This is a prospective randomized open-label trial. Women scheduled for their first or second in-vitro fertilization/intracytoplasmatic Sperm Injection (IVF/ICSI) cycle and with no abnormality detected in transvaginal ultrasound examination, were randomized to two groups. In the first group (group I) 31 patients underwent hysteroscopy examination before IVF cycle while in the second group (group II) 37 patients underwent direct cycle without previous hysteroscopy