There are currently four different types of MS recognised:
Relapsing remitting MS is the most common type of MS, affecting around 85 per cent of everyone diagnosed. It means that symptoms appear (a relapse), and then fade away, either partially or completely.
Secondary progressive MSis a stage of MS which can come after relapsing remitting MS. It means there is a sustained build up of disability, completely independent of any relapses.
Primary progressive MS affects about 10 to 15 per cent of people diagnosed with MS. Symptoms gradually get worse over time, rather than appearing as sudden attacks (relapses).
If you have a small number of relapses followed by a complete recovery, you may be described as having Benign MS. Benign MS can only be diagnosed retrospectively.
