What causes seizures? 77 possible conditions

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

21

Epidural Hematoma

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

An epidural hematoma occurs when blood fills the area between the skull and the protective covering of the brain. It usually results from a traumatic injury to the head, and puts you at risk for brain damage or death.

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22

Adult Brain Tumor

A brain tumor is the growth of abnormal cells in your brain. Whether the growth is cancerous or not, any brain tumor is serious. Symptoms can include both cognitive and physical control problems.

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23

Primary Cerebral Lymphoma

Primary cerebral lymphoma is also known as brain lymphoma or central nervous system lymphoma. The brain and spinal cord make up the central nervous system. Cells called lymphocytes are part of the lymph system and ca...

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24

Caffeine Overdose

You're at risk for caffeine overdose when you ingest more than 200 to 300 mg of caffeine (about three 8-oz cups of coffee) in a day. Dizziness, diarrhea, headache, and severe thirst may occur.

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25

Underactive Pituitary Gland (Hypopituitarism)

The pituitary gland releases hormones that play roles in body processes like bone growth and metabolism. An underactive pituitary can disrupt these processes. Causes may include tumors, traumatic injuries, and diseases.

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26

Encephalitis

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

Encephalitis is inflammation of the brain tissue usually caused by viral infection. Mild symptoms include fever, headache, and vomiting. Seizure, unconsciousness, and high fever are severe signs.

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27

Alcohol Withdrawal Syndrome

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

Alcohol withdrawal syndrome (AWS) is the name for the symptoms that occur when a heavy drinker suddenly stops or significantly reduces their alcohol intake. With AWS, you may feel mild anxiety and fatigue. You may als...

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28

Chemical Burns

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

Chemical burns occur when the skin or eyes come into contact with irritants, such as acids or bases. Symptoms vary, but skin reactions, pain or numbness are common.

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29

Snake Bites

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

A venomous snake bite can be deadly and is a medical emergency. Even a bite from a harmless snake can cause infection or an allergic reaction, producing symptoms like pain and swelling, convulsions, nausea, or paralysis.

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30

Carbon Monoxide Poisoning

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

Carbon monoxide poisoning occurs when we inhale too much carbon monoxide. It can lead to tissue damage and possibly death. Signs include a dull headache, nausea, confusion, and blue lips or skin.

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31

Toxic Shock Syndrome

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

Toxic shock syndrome is a rare, serious condition caused by a bacterial infection. Rash is one of several common signs for this symptom.

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32

Huntington's Disease

Huntington's disease is a hereditary condition in which the brain's nerve cells gradually break down. This affects physical movements, emotions, and cognitive abilities. There is no cure, but there are ways to cope wit...

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33

Shaken Baby Syndrome

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

Shaken baby syndrome is caused by forcefully and violently shaking a baby. Other names for this condition include abusive head trauma, shaken impact syndrome, whiplash shake syndrome, and inflicted head injury. Shake...

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34

Reye's Syndrome

Reye's syndrome is a rare condition that results in sudden swelling and inflammation of the liver and brain and is often accompanied by a red scaly rash. It is not contagious.

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35

Phenylketonuria

Phenylketonuria is a rare genetic condition in which the body is unable to breakdown phenylalanine, an essential amino acid.

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36

Ebola Virus and Disease

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

Ebola disease is a rare, often fatal illness. One of its late-stage symptoms is a bleeding rash over the entire body.

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37

Chronic Kidney Disease

Chronic kidney disease is a progressive, irreversible destruction of the kidneys. The most common causes are high blood pressure and diabetes. Symptoms don't show until about 90 percent of the kidney has been destroyed.

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38

Basal Cell Nevus Syndrome

Basal cell nevus syndrome is a group of defects caused by a rare genetic condition that can cause tumors in the jaw.

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39

Systemic Lupus Erythematosus

Systemic lupus erythematosus (SLE) is an autoimmune disease and the most common type of lupus. One of its common symptoms is a rash on the cheeks and nose called a "butterfly rash."

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40

End-Stage Kidney Disease

End-stage kidney disease is the final stage of kidney disease. Signs include an inability to urinate, headache, change in skin color, excessive thirst, and swelling in the legs and hands.

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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.
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