Multiple sclerosis is a neurological disease in which the insulating covers of nerve cells of the brain and spinal cord are damaged. This obstructs the ability of the parts of the nervous system to communicate. It causes certain physical, mental as well as psychiatric problems such as double vision, blindness in one eye, muscle weakness, and trouble with sensation and coordination. The causes of multiple sclerosis include destruction by the immune system or failing of the myelin-producing cells. It can also occur due to genetic and environmental factors such as viral infection. It is diagnosed on the basis of signs and symptoms along with medical tests. The most commonly used method of diagnosis is McDonald criteria, which focuses on clinical, radiologic and laboratory evidence of lesions in different areas and times. This book presents researches and studies performed by experts across the globe. Some of the diverse topics covered herein address the varied diagnostic techniques and treatment strategies of this disease. It is appropriate for students seeking detailed information in this area as well as for experts.