Loss of Bladder And Bowel Control. Multiple sclerosis can cause disruption in the signals sent between the bladder and the brain, leading to a loss of coordination between the urine storage muscle and the bladder emptying muscle. Both of these muscles need to work in tandem to hold and expel urine properly, which means that multiple sclerosis can result in bladder incontinence. Multiple sclerosis also causes disruption between the signals between the brain and bowels that often causes constipation and incontinence as a result of bowel overflow.
