This is an x-ray examination of the rectum (the lower 15 cm of your large bowel) and the way the muscles around this area work. You may be referred for this procedure if you are having problems with constipation, incontinence or other pelvic floor issues. Pelvic floor muscles are the layer of muscles that support the pelvic organs and span the bottom of the pelvis. The pelvic organs are the bladder and bowel in men, and the bladder, bowel and uterus in women. The procedure is not painful however we do understand that it is embarrassing to evacuate your bowels with others present. Because of this we do everything that we can to ensure that you feel as comfortable as possible.