Secondary progressive MS happens in some people who had relapsing-remitting MS first. It may or may not cause attacks (relapses). Unlike with relapsing-remitting MS, this form of MS gets worse over time, even without attacks.

This happens as more damage to the myelin and nerves in the brain and spinal cord occurs. How quickly this type of MS gets worse varies from person to person. With secondary progressive MS, people may start to have more physical problems and find it harder to do daily tasks.

There is no cure for MS. But there are medicines and other treatments that might help slow its progression and treat symptoms.