Abstract
Bladder dysfunction found in over70% of patients with sclerosis multiplex (SM) leads to severe problems, usually in later stages of the disease. The most frequent bladder disturbancesinclude hyperreflexia of the detrusor muscle,and dyssynergia between the detrusor and sphincter.The most important test of bladder dysfunctionis an assessment of the degree of bladdervoiding by the patient on his own. The treatment is long lasting and requires not only considerableflexibility, but also a good co-operation betweenthe patient, his neurologist and urologist. Anappropriate treatment may considerably relievethe ailments.