This link explains the categories:
http://www.mult-sclerosis.org/whatisms.html
As is apparent in the graphs, RRMS can have relapses with complete remissions, or relapses with only partial recovery.
SPMS starts off where RRMS leaves off, but then moves to a slow progression with no real remissions any more.
Cherie
__________________
I am not a Neurologist, Physician, Nurse, or Hairdresser ... but I have learned that it is not such a great idea to give oneself a haircut after three margaritas
.