This is caused by demyelination in the brainstem, in areas where specialized nerve centers control eye movements. Bowel, Bladder, and Sexual Dysfunction Patients may experience dysfunction in one or all of these areas. The most common symptom of bladder impairment is that of urinary urgency. This can result from uninhibited bladder contractions. Urinary incontinence and incomplete bladder emptying may occur.
Constipation is very common and is often made worse by inactivity.
Sexual difficulties occur in many patients. Males may complain of erectile dysfunction as a common problem. Spasticity, weakness sensory disturbances, and psychological factors may all play a part in sexual inactivity in both sexes. Fatigue Many people with MS experience a generalized feeling of fatigue, at times out of proportion to their level of physical activity. The degree of fatigue is not clearly related to the severity of other symptoms.