Primary Progressive Multiple Sclerosis
- People with primary progressive MS are usually older at the time of diagnosis -- an average age of 40.
- Roughly equal numbers of men and women develop primary progressive MS. In other types of MS, women outnumber men three to one.
- Primary progressive MS usually leads to disability earlier than relapsing-remitting MS (see below).
- Perhaps the most upsetting difference in primary progressive MS is its poor response to treatment. So far, no treatments have been shown to help, although studies are ongoing.
Relapsing-Remitting Multiple Sclerosis
Secondary Progressive Multiple Sclerosis
- The older a person is at original diagnosis, the shorter the time for the disease to become secondary progressive.
- People with incomplete recovery from initial relapses generally convert to secondary progressive MS sooner than those who recover completely.
- The process of ongoing nerve damage changes. After the transformation, there's less inflammation, and more slow degeneration of nerves.
Progressive Relapsing Multiple Sclerosis
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