It affects approximately 6 out of 100, 000 people There is a layer of myelin sheath covering our nerve cells which made up of protein and lipids. It helps to transmit the impulses along the nerve cells. Multiple sclerosis occur when the body’s own immune cells attack the nervous system, and cause progressive damage to the myelin sheath. The inflammation not only destroys the myelin sheath, but leaving multiple areas of scar tissue along the myelin sheath. This results in slowing or blocking the transmission of nerve impulses in that area. The cause of Multiple Sclerosis is unknown. It may be related to viral infection, gender (affect female more) or environmental factor etc. Symptoms vary depending on the location and extent of each attack. Common symptoms includes: Weakness or paralysis of extremities Loss of balance Slurred Speech Loss of vision or double vision Loss of control of urinary bladder (urinary hesitancy, urinary urgency, urinary frequency etc.) Abnormal sensation Vertigo, dizziness Multiple attack of nervous system, resulting in neurological deficit Neurological deficit persist for a continuous period of 6 months Symptoms must involving the optic nerves, brain stem and spinal cord, producing neurological deficits There is no known cure for multiple sclerosis There are therapies that may decrease exacerbations and delay progression of the disease Long term care by others is necessary in severe cases