Intermittent catheterization is the method of bladder management in patients with urinary retention caused by a neurogenic bladder. Neurogenic bladder can be caused by 1) upper motor neuron disease (for example, central nervous system lesions, including stroke, Parkinson’s disease, and multiple sclerosis [MS]); 2) spinal cord injury, including MS of the cord, and cervical and thoracic disc disease; and 3) lower motor neuron disease (for example, pelvic nerve injury, peripheral neuropathy, diabetes mellitus). These conditions can cause bladder dysfunction necessitating the use of intermittent catheterization.