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What causes seizures? 77 possible conditions

See a list of possible causes in order from the most common to the least.



Glomerulonephritis is a serious illness that can be life-threatening and requires immediate treatment. The condition is sometimes called nephritis.

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Ito Syndrome (Incontinentia Pigementi Achromians)

Ito syndrome (IS) is a rare condition characterized by loss of skin color on certain parts of the body. A serious abnormality associated with it is balding and missing or abnormally shaped teeth and nails.

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Celiac Disease (Gluten Intolerance)

Celiac disease is a digestive disorder caused by an immune reaction to gluten. Symptoms vary but can include arthritis, fatigue, and abdominal symptoms.

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Hypoparathyroidism occurs when the parathyroid glands in the neck don't produce enough hormone (PTH). Too little PTH causes low calcium and high phosphorus levels in the body. Many of its symptoms concern low calciu...

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Pituitary Cancer

The pituitary gland is a very small gland of major importance to the functioning of the human body. It is located directly behind the eyes and below the front of the brain. It is about the size of a pea. Despite it...

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Medullary Cystic Disease

Medullary cystic kidney disease is a rare condition that causes cysts to form on kidneys. Kidney failure may result, symptoms of which can include changes in skin color and itchy skin.

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Malaria is a life-threatening disease. It is typically transmitted through the bite of a mosquito infected with Anopheles. Nausea, chills, fever, and diarrhea are common symptoms.

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The Plague

The plague is a serious bacterial infection that can be deadly. It's caused by poor sanitation, overcrowding, and large rodent populations.

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Maple Syrup Urine Disease (MSUD)

Maple syrup urine disease is a rare, inherited,

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Rabies is caused by a virus that affects the central nervous system. It can be transmitted by bites and scratches from an infected animal, often a dog.

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Tay-Sachs Disease

Tay-Sachs is a disease of the central nervous system; it is a neurodegenerative disorder. Tay-Sachs most commonly affects infants. In infants, it is a progressive disease that is unfortunately always fatal. Rarely...

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Adrenergic Bronchodilators Overdose

This condition is considered a medical emergency. Urgent care may be required.

An overdose happens when you take too much of a drug. Whether intentional or accidental, drug overdoses can be life threatening. Adrenergic bronchodilators overdose is when a person has taken too much of a certain typ...

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Acetaminophen Overdose

This condition is considered a medical emergency. Urgent care may be required.

Acetaminophen is a pain reliever found in over-the-counter medications such as Tylenol and in prescription medications. Overuse of this ingredient can lead to liver damage, and an overdose can be fatal.

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Aicardi Syndrome

Aicardi syndrome is a rare genetic disorder that interferes with the formation of the corpus collusum, the connector between two hemispheres of the brain. Medical researchers do not believe that the disorder is passe...

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Adrenoleukodystrophy (ALD) refers to several different inherited conditions that affect the nervous system and adrenal glands. Other names for it are adrenomyeloneuropathy, childhood cerebral ALD, and Schilder-Addiso...

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Yellow fever

Yellow fever is a serious, potentially deadly flu-like disease spread by mosquitoes. It's found mostly in Africa and South America. Symptoms of stage 3 yellow fever include abdominal pain, vomiting, and jaundice.

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Brain Abscess

A brain abscess forms when fungi, viruses, or bacteria reach your brain through a wound in your head or an infection somewhere else in your body.

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Lupus is an autoimmune disease that causes inflammation throughout the body. An autoimmune disease is a condition where the body's own immune system is responsible for the inflammation and breakdown of its own cells...

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As Rare as it Gets: Chediak Higashi Syndrome

Chediak-Higashi syndrome (CHS) is an extremely rare form of partial albinism that is accompanied by problems in the immune and nervous systems. Albinism is a lack of color in the skin, hair, and eyes. This specific typ...

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What's In Your Head: Chronic Subdural Hematoma

A chronic subdural hematoma (SDH) is a pool (or collection) of blood on the brain’s surface under the dura, which is the outer covering of the brain. It usually begins forming several days or weeks after bleedin...

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.