Personal experience of diagnostic and operative hysteroscopy of septate uterus is reported. The diagnosis of septate uterus is an integrated diagnosis that makes use of hysterosalpingography, echography, hysteroscopy and laparoscopy. Of 545 hysteroscopies carried out between January and December 1993, 29 evidenced uterine septum, complete in 6 cases, incomplete in the remaining 23. Of the 29 patients, 7 underwent resection of the septum by the hysteroscopic route. No intra or postoperative complications worthy of note were observed. At follow-up after one month, the uterine cavity in 5 patients proved completely regular while in the remaining 2 one case of fundic fibrous synechia and one of small persistent fibrous bridge, of little importance within the context of the cavity, were observed. The purpose of the present paper is to demonstrate the twofold role of hysteroscopy with regard to the septate uterus; is that hysteroscopy is a diagnostic and a precise operative technique that is atraumatic, fast and of low cost.