The nervous system

The nervous system

The nervous system is examined to eliminate a neurological lesion. Diabetes mellitus, tabes dorsalis, disseminated sclerosis, cervical spondylosis, Parkinson’s disease and other neuro logical states may mimic prostatic obstruction. If these are suspected, then a pressure–flow urodynamic study should be carried out to diagnose BOO. Examination of perianal sensa tion and anal tone is useful in detection of an S2–4 cauda equina lesion.