Question: why does bph cause urgency?
Answer: The most common phenomenon is detrusor overactivity (detrusor hyperreflexia) which is caused by supra-nuclear lesion of nerves innervating the detrusor. Like unstable bladder in BPH, this condition causes urinary urgency or urge inconti- nence. In spinal disease, detrusor-sphincter dyssynergia is often found.