Why the patient with multiple sclerosis develop urinary incontinence?

MS lesions in CNS: Bladder dysfunction, which occurs in at least 80 percent of people with MS, happens when MS lesions block or delay transmission of nerve signals in areas of the central nervous system that control the bladder and urinary sphincter. See your neurologist for further discussion. http://www.healthline.com/health/multiple-sclerosis/incontinence

Nerve damage: Multiple sclerosis can affect nerves controlling urinary sphincters. This can lead to neurogenic bladder dysfunction & urinary incontinence. An unfortunate consequence

Consider: Pts with MS can have lesions in the spinal cord affecting bladder and even bowel function. The typical result is an urgency incontinence secondary to loss of control. But a not infrequent complication of MS is a urinary tract infection, which may also result in loss of control. Treatment of infection may result in stabilization. Meds to assist these problems are readily available.