Illustration showing symptoms of multiple sclerosis in human anatomy. Symptoms of the central nervous system fatigue, depression, impaired cognition, mood swings. Symptoms of the muscular system weakness, spasm, and ataxia. Symptoms of the intestine incontinence, diarrhea or constipation. Symptoms effecting vision nystagmus, optic neuritis, diplopia. Dysphagia in the throat. Symptoms in the nervous system pain, hypoesthesias, paraesthesias. Urinary symptoms incontinence, frequency or retention.