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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.



Encephalopathy is a general term describing a disease that affects the function or structure of your brain. There are many types of encephalopathy and brain disease. Some types are permanent and some are temporary. Som...

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Kidney Failure

Kidney failure occurs when the kidneys lose the ability to sufficiently filter waste from the blood. Many factors can interfere with kidney health and function, such as toxic exposure to environmental pollutants an...

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Metachromatic Leukodystrophy

Enzymes are proteins that help break down (metabolize) substances in the body. If certain enzymes are not present, the body will be unable to metabolize a substance. If the substance remains in the body, it may buil...

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Hemolytic Uremic Syndrome

Hemolytic uremic syndrome (HUS) is a complex condition in which a buildup of broken-down blood cells leads to serious kidney damage. Infections of the gastrointestinal tract (your stomach and intestines) are the mos...

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Krabbe Disease

Krabbe disease is a rare and usually deadly disorder of the nervous system. It is an inherited genetic disease, which means that it is passed down in families. People with Krabbe disease are not able to create enough o...

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Hallervorden-Spatz Disease

Hallervorden-Spatz disease (HSD) is an inherited neurological disorder. It causes issues with movement. A rare disease, it is a serious condition that worsens over time. HSD can be fatal.

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Acute Mountain Sickness

Acute mountain sickness (altitude sickness or high altitude pulmonary edema) occurs in high altitudes, especially when exercising. A lack of oxygen can give the skin and lips a blue tinge.

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Meningeal Tuberculosis

Tuberculosis (TB) is a contagious airborne disease that typically affects the lungs. TB is caused by a bacterium called Mycobacterium tuberculosis. If a TB infection is not treated promptly, the bacterium can trave...

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Hypercalcemia is a condition in which you have too much calcium in your blood. Serious cases could cause symptoms like abdominal pain, nausea, constipation, and weakness.

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Muscular Dystrophies

Muscular dystrophies are a group of diseases that cause damage and weakness to muscles over time. This damage and weakness is caused by the lack of a protein called dystrophin, which is necessary for normal muscl...

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Actinomycosis is a long-term infection that causes abscesses to form in the soft tissues of the body. Lumps in the neck or face can be a sign of actinomycosis.

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Syphilitic Meningitis

Syphilis is a sexually transmitted infection (STI). Left untreated, it can lead to meningitis. This is an infection of the layers of tissues that cover the brain and spinal cord. Syphilitic meningitis is also calle...

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Diabetic Hyperglycemic Hyperosmolar Syndrome

Hyperglycemic hyperosmolar syndrome (HHS) is a potentially life-threatening condition involving extremely high blood sugar (glucose) levels. According to Medscape, any illness that causes dehydration or reduced insuli...

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Tuberous Sclerosis

Tuberous sclerosis (TS) is a rare genetic condition. Sometimes called tuberous sclerosis complex (TSC), the disorder causes noncancerous (benign) tumors to grow in the brain and other vital organs, and on the skin...

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Gaucher's Disease

Gaucher disease is an inherited condition in which your body does not store fatty materials (called lipids) correctly. Fatty substances can build up around your vital organs, including your liver, spleen, lungs, bones...

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Infectious Mononucleosis

Infectious mononucleosis, or "mono," is a group of symptoms caused by the Epstein-Barr virus. One potential symptom is a pink rash that looks like the measles.

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Brain Tumor

A brain tumor is a collection of abnormal cells in the brain, which can increase pressure in the skull. Risk factors for brain tumors include age, race, family history, and exposure to chemicals and radiation.

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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.