Related Conditions

Amyotrophic lateral sclerosis (ALS)

Amyotrophic lateral sclerosis, or ALS, is a disease in which certain nerve cells in the brain and spinal cord slowly die. These nerve cells are...

Arteriovenous malformation (AVM)

Arteriovenous malformation (AVM) is a congenital defect in which arteries and veins are tangled and not connected by capillaries. The lack of...

Back and neck pain

Most people have back and neck pain from time to time. Some people have ongoing pain that gets in the way of their everyday activities. Either way,...

Brain aneurysm

A brain (cerebral) aneurysm is a bulging, weak area in the wall of an artery that supplies blood to the brain. In most cases, a brain aneurysm...

Carpal tunnel syndrome

Carpal tunnel syndrome is numbness, tingling, weakness and other problems in your hand because of pressure on the median nerve in your...

Chiari malformation

Arnold-Chiari malformation is a rare malformation of the brain that is sometimes, but not always, apparent at birth. It is characterized by...

Compression fractures

A compression fracture occurs when an injury to a spinal bone (vertebra) causes it to fracture and collapse (compress). A weakened vertebra may...

Degenerative disc disease

Degenerative disk disease (DDD) is not really a disease but a term used to describe the normal changes of the disks in the spine as a person ages....

Dementia

Dementia is a loss of mental skills that affects your daily life. It can cause problems with your memory and how well you can think and plan....

Diabetic neuropathy

Neuropathy means nerve disease or damage. Diabetic neuropathy is nerve damage caused by diabetes. People with diabetes often have high blood sugar...

Dizziness

Dizziness is a word that is often used to describe two different feelings. It is important to know exactly what you mean when you say "I feel...

Epilepsy

Epilepsy causes repeated seizures and is one of the most common neurological condition. The seizures are caused by bursts of electrical activity...

Eye problems with vision changes

Vision changes that occur gradually over time or that seem to come and go are usually less serious than changes that occur suddenly and persist....

Guillain-Barré syndrome (GBS)

Guillain-Barré syndrome (GBS) is a rare nerve disorder that occurs when the body's own defenses (immune system) attack part of the peripheral...

Head injury

Most injuries to the head are minor. Bumps, cuts, and scrapes on the head and face usually heal well and can be treated the same as injuries to...

Headaches

Headaches are one of the most common pain-related health problems in both children and adults. You may have a headache along with another minor...

Herniated disk

The bones (vertebrae) that form the spine in your back are cushioned by small, spongy disks. When these disks are healthy, they act as shock...

Memory loss

Most people assume that it is normal for a person to lose memory as he or she ages. It's not normal, but it is common. Memory loss causes real...

Mild cognitive impairment (MCI)

Some older people have greater memory and cognitive difficulties than do those undergoing normal aging, but their symptoms are not so severe as to...

Multiple sclerosis

Multiple sclerosis, often called MS, is a disease that affects the central nervous system—the brain and spinal cord. It can cause problems with...

Nonepileptic events

People with nonepileptic seizures (NES) have periods of seizure-like activity. NES are characterized by a loss of or change in physical function...

Parkinson's disease

Parkinson's disease affects the way you move. It happens when there is a problem with certain nerve cells in the brain. Normally, these nerve...

Peripheral nerve disorders

Peripheral neuropathy is an umbrella term that denotes a disorder of, or damage to, the peripheral nervous system. The peripheral nervous system...

Pituitary tumors

A pituitary tumor is a growth of abnormal cells in the tissues of the pituitary gland. Pituitary tumors form in the pituitary gland, a...

Primary lateral sclerosis

Primary lateral sclerosis (PLS) is a rare, neuromuscular disorder that affects the central motor neurons and is characterized by painless but...

Progressive muscular atrophy

Progressive muscular atrophy is a rare type of ALS which affects only the lower motor neurons.  (ALS affects both the upper and lower motor neurons.)

Progressive supranuclear palsy (PSP)

Progressive supranuclear palsy (PSP) is a rare degenerative neurological disorder characterized by loss of balance and impaired walking; loss of...

Sciatica

Sciatica is pain caused by irritation or pressure against the nerve roots of the sciatic nerve. People with sciatica usually have a shooting pain...

Scoliosis

Scoliosis is a problem with the curve in your spine. Some curves in your spine are normal. But a few people have spines that make a large curve...

Seizures

Seizures are the only visible symptom of epilepsy. There are different kinds of seizures, and symptoms of each type can affect people differently....

Spinal cord injury

A spinal cord injury is damage to the spinal cord. The spinal cord is a soft bundle of nerves that extends from the base of the brain to the lower...

Spinal stenosis

Spinal stenosis is the narrowing of the spinal canal caused by excessive bone growth, thickening of tissue in the canal (such as ligaments or...

Spondylolisthesis

Spondylolysis is a defect or fracture of one or both of the wing-shaped parts of a vertebra. These "wings" help keep the vertebrae in place. When a...

Spondylosis

Spondylosis is degeneration of the spine.

Stroke

A stroke occurs when a blood vessel in the brain is blocked or bursts. Without blood and the oxygen it carries, part of the brain starts to die....

Subarachnoid hemorrhage

A subarachnoid hemorrhage is the bursting of a blood vessel in the brain. This results in sudden bleeding into the space between the middle lining...

Temporal lobe epilepsy

Temporal lobe epilepsy involves the portions of the brain that control emotions and memory. The temporal lobes are located on each side of the head...

Trigeminal neuralgia

Trigeminal neuralgia, also known as tic douloureux, is a disorder of the fifth cranial nerve (trigeminal nerve) characterized by attacks of...

Vascular dementia

Vascular (or multi-infarct) dementia refers to a decline in a person's mental abilities that results from a series of strokes. A stroke occurs when...

Brain tumor

An adult brain tumor is a disease in which abnormal cells form in the tissues of the brain. There are many types of brain and spinal cord tumors....

Congenital hydrocephalus

Congenital hydrocephalus is a condition present at birth in which excess cerebrospinal fluid (CSF) collects within the brain. The brain's...

Hearing loss

Hearing loss is a sudden or gradual decrease in how well you can hear. Depending on the cause, it can range from mild to severe and can be...

Absence seizures

An absence seizure is a brief—5 to 15 seconds—but total loss of awareness that occurs suddenly without any warning and ends as suddenly as it...

Altered mental status

Delirium is a sudden change in how well a person's brain is working (mental status). Delirium can cause confusion, change the sleep-wake cycles,...

Aphasia

Landau Kleffner syndrome (LKS) is characterized by the loss of comprehension and expression of verbal language (aphasia) in association with...

Complex partial seizures

Complex partial seizures occur in children and adults with certain forms of epilepsy. They are the most common type of seizure in adults. An...

Fever seizures

Fever seizures (sometimes called fever convulsions) are uncontrolled muscle spasms that can occur in children who have a rapid increase in body...

Focal seizures

Epilepsy that causes partial seizures is sometimes called focal epilepsy because the seizures start at a specific focus or location within the...

Generalized seizures

Epilepsy that causes generalized seizures is more common in children than in adults. Unlike partial seizures, which begin in a specific, often...

Hallucinations

A hallucination is a perception of something that is not really there. A hallucination can involve any of the senses: hearing, sight, smell, taste,...

Lennox-Gastaut syndrome

Lennox-Gastaut syndrome (LGS) is a rare disorder that typically becomes apparent during infancy or early childhood. The disorder is characterized...

Passing out

Fainting is a sudden, brief loss of consciousness. When people faint, or pass out, they usually fall down. After they are lying down, most people...

Psychosis

Psychosis is a mental and behavioral disorder in which a person has trouble telling the difference between what is real and what is not real. It...

Rolandic epilepsy

Benign focal childhood epilepsy is a common form of epilepsy in children, causing seizures that make the muscles all over the body stiffen and...

Simple partial seizures

Simple partial seizures occur in children and adults with some forms of epilepsy. They are about half as common as complex partial seizures....

Tonic-clonic seizures

Generalized tonic-clonic (grand mal) seizures are the easiest seizures to recognize. They happen most often in people with generalized epilepsy of...

Acoustic neuroma

An acoustic neuroma is a noncancerous (benign) tumor found on the eighth cranial nerve near the ear canal. This nerve is responsible for hearing...

Parasomnias

Parasomnias are undesirable physical activities that occur during sleep involving skeletal muscle activity, nervous system changes, or both. Night...