Nitze did

Bladder diseases.

A cystoscope is a medical instrument used during a cystoscopy. It is inserted into the urethra to help exam the lining of the urinary bladder and urethra.

The combined form of the word "bladder" is "cysto-" or "vesico-", as in cystoscope or vesicostomy.

A cystoscope is basically a long thin hollow tube with a camera and light on the end.

In carrying out a cystoscopy the cystoscope is inserted into the bladder via the urethra by a doctor or nurse specialist who then interprets the images relayed to a monitor. If needed instruments can be passed down the hollow centre to allow biopsies etc to be taken.