Problems with how you speak can be a symptom of multiple sclerosis for some people. MS speech disorders include slurring of speech and problems with the quality of your voice (dysarthria) and difficulty remembering specific words (dysphasia).

Foot drop, or dropped foot, is a symptom of multiple sclerosis caused by disruption in the nerve pathway between the legs and the brain. Find out how foot drop is treated in MS.

Poor sleep is common in people with multiple sclerosis, with about 50% of people with MS reported to experience some form of sleep disturbance. Despite this being well known, sleep disorders are under-diagnosed and under-treated in people with MS.

Some people with multiple sclerosis find that they experience sudden episodes of uncontrollable laughing and/or crying at inappropriate times, or which are unrelated, or out of proportion, to their current mood.

Weakness in multiple sclerosis can be a direct result of MS, caused by poor transmission of messages by damaged nerves, mainly within the spinal cord. Read more about weakness in this A-Z entry.

Sexual difficulties are common in women with MS. Not all sexual problems will be as a direct result of multiple sclerosis and often result from a complex interaction of physical, social, psychological and emotional elements.

Paroxysmal is a term that describes the way that some symptoms of multiple sclerosis come on very suddenly, last only a few seconds or minutes and then disappear just as quickly. Your health professionals may call them episodic symptoms.

Visuospatial abilities refer to the way you relate visual information to the space around you. If you have visuospatial problems, you may find it hard to interpret what you see and act appropriately.

Nocturia is the need to wake up multiple times during the night to empty your bladder. It can be common in multiple sclerosis (MS), particularly if you need to use the toilet often during the day (frequency) or if you have difficulty emptying your bladder.

Tremor is involuntary, uncontrolled movements of parts of your body. You might experience tremor as twitching or jerking, or as shaky, trembling movements. In multiple sclerosis (MS), the most common type of tremor is intention tremor or cerebellar tremor.