Direct observation of the uterine canal with the lens hysteroscope1 is a relatively simple procedure. After the examiner becomes accustomed to various appearances of the endometrium, as seen through the hysteroscope, the examination is not too difficult. Also, taking into consideration that the field of vision is magnified to a certain extent, the examiner will not be misled as to probable pathological conditions in the findings of either normal endometrium or endometrial hyperplasia.
Since uterine bleeding is a common complaint, and at times one of the most difficult to diagnose as to the cause of bleeding, it would seem that an instrument, such as the hysteroscope, for direct vision would be of value, not only in diagnosis but also in the treatment of certain pathological conditions of the uterine canal. So often in patients with uterine bleeding there is normal bimanual findings that it is assumed that the cause
Norment WB. HYSTEROSCOPE IN DIAGNOSIS OF PATHOLOGICAL CONDITIONS OF UTERINE CANAL. JAMA. 1952;148(11):917-921. doi:10.1001/jama.1952.02930110039009