It is a modern, safe and fast method of surgically treating benign pathological conditions of the uterus. It is harmless and effective when executed by experienced surgical teams with cutting-edge technical knowledge. It is a method of choice in infertility cases related to these conditions. The advantages are similar to those of laparoscopic surgery. Hysteroscopy is performed with the use of a camera-hysteroscope, advanced medical technology equipment, special thin tools and electrosurgery units. The surgery time needed is substantially reduced when compared to a laparotomy procedure. In addition, it is internationally acceptable that the pregnancy results are significantly higher following the correction of any endometrial pathology with hysteroscopic surgery.In order to perform hysteroscopic surgery, it is necessary to distend the uterine cavity which can only be achieved with distension fluids. The distension fluids may be crystalloid (e.g. normal saline solution) which are electrically conductive and colloid (e.g. glycine, Purisol, etc.) which are non conductive.