Neurogenic bladder is caused by

• A. Chronic infection of the bladder wall
• B. CNS injury or damage to nerves that innervate the bladder
• C. Dehydration
• D. High fluid intake

Answer: (B)

Neurogenic bladder happens when the neural control of the bladder is disrupted. The detrusor muscle and the urethral sphincters rely on signals from the brain, spinal cord, and pelvic nerves to coordinate urine storage and emptying. When there is damage to the central nervous system or to the nerves that innervate the bladder, those coordinated signals are lost or altered, leading to problems like improper contraction or failure to relax, which can cause incontinence or retention.

Chronic infection of the bladder wall changes the lining and causes symptoms, but it does not disrupt neural control of the bladder. Dehydration reduces urine production, and high fluid intake increases it; these affect volume and frequency but do not cause neurogenic bladder through neural pathway injury.