The brain of a person with MS often responds less actively to stimulation of the optic nerve and sensitive nerves. These brain responses can be examined using visual evoked potentials (VEPs) and somatosensory evoked potentials (SEPs). Decreased activity on either test can reveal demyelination which may be otherwise asymptomatic.
As in most disorders therapy is more effective if started earlier.
Episodes of flares and remissions are typical for multiple sclerosis. Occurrence and duration of the flares and remissions are totally unpredictable. In some cases of MS episodes can't be distinguished very clearly. An all cases of MS the evolution of the disease is more or less progressive.
Multiple sclerosis is more common for young female adults.