Hysteroscopy is performed with the use of a hysteroscope, a thin telescope inserted through the cervix into the uterus. 

Modern hysteroscopes are thin enough to fit through the cervix with minimal or no dilation.

Because the inside of the uterus is a potential cavity, like a collapsed air dome, it is necessary to fill (distend) it with a liquid in order to see it completely. 

A diagnostic hysteroscopy is usually done to look for fibroids, polyps and other problems that may be causing bleeding.

An operative hysteroscopy is performed by inserting very thin instruments into the uterus to remove polyps, cut adhesions and do other procedures. 

In many situations, operative hysteroscopy may offer an alternative to more invasive surgery.

For more information, speak with your gynecologist or primary care physician.