A set of sensors (sticky patches) that detect muscle activity is placed on your child's buttocks near the sphincter area. The sensors are attached to a small computer that records the signals from the sensors and presents them on the computer screen for you and your child to see. The signals change as your child contracts and relaxes the sphincter muscle. This begins the process of isolating the sphincter muscle and understanding how to properly relax the muscle. The placement of the sensors and the recordings into the computer are not painful. No electric shocks pass to the patient.