Multiple Sclerosis is a demyelinating diseases in which the insulating covers of nerve cells in the brain and spinal cord are damaged. This damage disrupts the ability of parts of the nervous system to communicate, resulting in a wide range of signs and symptoms, including physical, cognitive, and sometimes mental problems.
There are several types of MS. Relapsing Remitting (RRMS) the most common in which there are isolated attacks. Another words time in between attacks where you might return to normal or a some what normal state. You will still have symptoms that vary and last for short periods of time. Primary Progressive form (PPMS) there are no distinct relapses but there may be plateaus or minor improvement but each attack worsens with added severity or new symptoms and leaves permanent neurological problems behind as the disease advances. Secondary Progressive MS ( SPMS) follows RRMS meaning it follows after having RRMS. 85% of people diagnosed with RRMS will transition to SPMS. Which mean after a time of experiencing relapses the disease will start to progress steadily. With or without relapses. Progressive Relapsing (PRMS) progresses from the beginning with occasional attacks. People with this form may or may not experience some recovery after attacks. The disease continues to steadily progress without remission.