Multiple sclerosis frequently results in a wide range of symptoms which often coexist, creating a complex pattern of disability. Chief among these symptoms, both in relation to their frequency and their impact on the patient, are spasticity, ataxia and fatigue. This chapter discusses the pathological basis and current treatment of these symptoms and stresses the importance of a multidisciplinary approach to their management, producing a comprehensive care plan which incorporates these and any other coexisting problems.