A septum or wall separating the cavity of the uterus into two halves; a cause of recurrent miscarriages.

An examination of the endometrial cavity of the uterus by a thin fiberoptic instrument, similar to the instrument used for laparoscopy. Hysteroscopy can be done in the office, with or without sedation, to make a diagnosis, or in the operating room under general anesthesia, often in association with laparoscopy or to carry out a hysteroscopic operation, such as removal of an endometrial polyp, submucous fibroid or uterine septum.

A plastic operation on the uterus to change the shape of its cavity, usually for a uterine septum or for a bicornuate uterus, if there have been a number of miscarriages.