< Back to All Videos thirdAGE > Types of MS: RRMS/SPMS Up Next... 10 What Causes MS? What Causes MS? Types of MS:PRMS Types of MS: PPMS Loading the player ... Multiple Sclerosis Information Types of MS: RRMS/SPMS Learn more about RRMS and SPMS–two types of Multiple sclerosis. Related Videos What Causes MS? Types of MS:PRMS Types of MS: PPMS Risk Factors for MS