What Are the Four Types of Multiple Sclerosis?

What Are the Four Types of Multiple Sclerosis?

What Are the Four Types of Multiple Sclerosis?

The four types of multiple sclerosis, commonly referred to as MS, are relapsing-remitting MS, secondary-progressive MS, primary-progressive MS and progressive-relapsing MS, according to the National Multiple Sclerosis Society. Each form varies in level of severity from mild to severe.

Eighty-five percent of patients diagnosed with MS have the relapsing-remitting variation, or RRMS, states the National MS Society. People with RRMS have symptom flare-ups that alternate with periods of few or no symptoms. Most people with RRMS eventually develop secondary-progressive MS. SPMS progresses at a steadier pace.

In primary-progressive MS, neurological symptoms decline regularly right from the start of the disease. PPMS accounts for about 10 percent of MS patients. With progressive-relapsing MS, symptoms steadily worsen and flare up considerably at certain intervals.