Multiple Sclerosis is a serious neurological disorder that is often disabling. The Multiple Sclerosis Foundation estimates that more than 400,000 people in the United States suffer some level of symptoms from the condition. Not all cases lead to disability. However, the condition can progress to the point that continuing to work is no longer an option for some people. Unfortunately, a diagnosis alone does not automatically lead to a long term disability benefit approval and insurers may resist paying benefits if they deem the evidence of functional impairment inadequate.