Multiple sclerosis is a chronic condition of the central nervous system that causes depletion of the myelin which is a protective covering of the nerve cells. Depletion of nerve axons are also seen within the brain as well as sometimes in the spinal cord also, but the depletion does not occur at the same time. The depletion of myelin causes temporary, repetitive or sustained disruption in nerve impulse conduction which will result in symptoms like weakness, numbness, visual disturbances and loss of bladder and bowel control.
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