'''(BMS) Benign MS'''?(20% of RRMS cases) Not everyone with MS will develop a more progressive form of the disease. In 10 percent to 15 percent of patients, symptoms are mild to moderate, don't worsen and don?t lead to permanent disability. Benign MS Patients stay relatively unimpaired for many years after an initial attack. Approximately 20 per cent of patients have this form of disease with no permanent disability. The most common symptom is sensory (33%) and Optic Neurtis (33%). The younger the Dx usually indicates a more favorable course. However