What Causes Bladder Spasms?

Multiple Sclerosis

Multiple sclerosis (MS) is an autoimmune disease, meaning the patient's immune system attacks the protective myelin sheath that covers the nerves. It is also a progressive disease that eventually becomes extremely debilitating to affected individuals. The myelin sheath covering the nerves serves as a protective fatty layer that ensures the smooth transmission of signals between the brain and nerves around the body. When the immune system of multiple sclerosis patients attacks the myelin sheath, the protective covering becomes damaged and may severely disintegrate. Without adequate myelin sheathing, the brain is often not able to correctly communicate with the pelvic nerves. The pelvic nerves are responsible for telling the bladder what to do and when to do it. When the signals to the bladder from the brain are impaired or disrupted, the bladder will relax when it shouldn't, contract inappropriately, and the sphincter will not function normally to hold in urine. When the impaired nerve signals cause the bladder to abnormally contract, bladder spasms occur.

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