I've done this twice already, and actually have another one tomorrow. It's a little more embarrassing than getting a gyn exam but it gives answers that can only be found in the test, that could affect the bladder and bowel, and whole pelvic floor muscles and nerves. It's not painful at all. It's like an EEG but on the Pelvic floor region of the body. They're testing bladder function of muscles and nerves.