Any evaluation for a health problem begins with a medical history and a general physical examination. Your doctor can use this information to narrow down the possible causes for your bladder problem.
If nerve damage is suspected, the doctor may need to test both the bladder itself and the nervous system, including the brain. Three different kinds of tests might be used:
These tests involve measuring pressure in the bladder while it is being filled to see how much it can hold and then checking to see whether the bladder empties completely and efficiently.
The doctor may use different types of equipment—x rays, magnetic resonance imaging (MRI), and computerized tomography (CT) scans—to take pictures of the urinary tract and nervous system, including the brain.
EEG and EMG
An electroencephalograph (EEG) is a test in which wires with pads are placed on the forehead to sense any dysfunction in the brain. The doctor may also use an electromyograph (EMG), which uses wires with pads placed on the lower abdomen to test the nerves and muscles of the bladder.