Which are the forms of MS?
MS Evolution is a difficult to predict. Some people are affected in a very small extent by the disease, others progressing rapidly to total disability while the majority is between these two extremes. Although each individual will have a different combination between MS symptoms. There are some distinct patterns related to disease evolution.
MS with flares (times of crisis mitigation and alternatives):
In this form of MS appears unforeseen flares (exacerbations, attacks) during which new symptoms appear or existing symptoms worsen. These flares occurs on different time duration (days or months) and the recovery is complete or partial. The disease may be inactive for months or years.
Frequency: Approximately 25%
Benign MS:
After one or two attacks with complete recovery, this form of MS is worse in time and there is no permanent disability. MS can be identified as benign only if, after 10-15 years from initial debut there is only minimal disability and if at first it was classified as SM with flares. Benign MS tends to be associated with less severe symptoms in the initial phase (eg sensory).
Frequency: Approximately 20%
Secondary progressive MS:
In some people who have MS with flares at the start, there is a progressive worsening of the degree of disability in the disease, often being accompanied by superimposed flares.
Frequency: Approximately 40%
Primary progressive MS:
This form of MS is characterized by a lack of distinct attacks, but with a slow onset and progressive aggravating symptoms. There is an accumulation of deficiencies and handicaps that can be capped at one time or may continue over the years.
Frequency: Approximately 15%
