Brain and Nervous System Medical Reference

Neuromyelitis optica, or NMO, is a rare disease that mostly affects your eyes and spinal cord. It’s also known as Devic's disease.

How you treat acute hepatic porphyria depends on your symptoms. Learn how those treatments can help you feel better and prevent attacks.

You may feel AHP in a different way than someone else. And your doctor may mistake your symptoms for another disease. Learn what to look for.

If you have acute hepatic porphyria, the proper diagnosis is crucial. Here's how that happens.

Acute hepatic porphyria is one of a group of disorders that are triggered by a buildup of natural chemicals in your body. It can cause nerve problems and other symptoms.

Both short-term and long-term complications are possible from acute hepatic porphyria. Learn more about what you can expect.

Since SMA destroys motor neurons and weakens your muscles, people with SMA can have complications. Learn what they are.

Spinal muscular atrophy is sorted into types, depending on the age and development milestones reached when symptoms first start.

If you or your child has spinal muscular atrophy (SMA), a team of many different medical professionals can help you manage your symptoms.

There’s no cure for spinal muscular atrophy (SMA) yet. But if you or someone you love has SMA, treatment options are available. Learn more.

How your spinal muscular atrophy (SMA) changes over time depends on many things. Learn what you can expect.

Find out what happens when you have a nervous system disease called multiple system atrophy (MSA) and learn how to manage the symptoms.

Encephalopathy happens when a change in your body or your brain affects how well you think. Learn the causes, symptoms, treatments and more.

Learn what conditions can make you feel dizzy and nauseated, and what other symptoms you might have with them.

Find out about the many different types of paralysis (when you can’t move parts of your body after something goes wrong with their connection to your brain).

Nerve problems can be hard to pin down. Learn about a possible cause of pain, numbness and tingling in your arms and hands: thoracic outlet syndrome.

Hydrocephalus is a buildup of fluid in your brain. Learn more about its causes, symptoms, and treatments.

Talking is something we often take for granted. But what if you suddenly can't get the words out or can't say them in your usual way? Find out what could be causing your sudden speech problems and what you can do about it.

When you hear a word, do you see a color or taste a food? You may have the condition, synesthesia, You perceive one sense through another of your senses.

Empty sella syndrome affects the pituitary gland but may not cause symptoms. Learn more about the condition, including symptoms, diagnosis, and treatment.

If a loved one is suddenly acting confused, you need to get help right away. Learn what causes sudden confusion and how it’s treated.

Learn about cranial ultrasound, which can see inside your baby’s brain.

If you are feeling dizzy constantly, your doctor may perform a Dix-Hallpike Test in order to perform a vertigo diagnosis. Learn more about the examination and what the results mean.

If you’ve been back from a cruise for weeks, but still feel like you’re rocking and swaying, you might have mal de debarquement syndrome. Learn what causes it, what the symptoms are, and how it’s treated.

You can get Wernicke-Korsakoff syndrome when you don’t have enough vitamin B1. Learn the causes, symptoms, and treatments for this disease.