A seizure is a sudden, uncontrolled electrical disturbance in the brain. It can cause changes in your behavior, movements or feelings, and in levels of consciousness. If you have two or more seizures or a tendency to have recurrent seizures, you have epilepsy.
There are many types of seizures, which range in severity. Seizure types vary by where and how they begin in the brain. Most seizures last from 30 seconds to two minutes. A seizure that lasts longer than five minutes is a medical emergency.
Seizures are more common than you might think. Seizures can happen after a stroke, a closed head injury, an infection such as meningitis or another illness. Many times, though, the cause of a seizure is unknown.
Most seizure disorders can be controlled with medication, but management of seizures can still have a significant impact on your daily life. The good news is you can work with your health care professional to balance seizure control and medication side effects.
Seizure care at Mayo Clinic
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With a seizure, signs and symptoms can range from mild to severe and vary depending on the type of seizure. Seizure signs and symptoms may include:
Doctors generally classify seizures as either focal or generalized, based on how and where abnormal brain activity begins. Seizures may also be classified as unknown onset, if how the seizure began isn't known.
Focal seizures result from abnormal electrical activity in one area of your brain. Focal seizures can occur with or without loss of consciousness:
Symptoms of focal seizures may be confused with other neurological disorders, such as migraine, narcolepsy or mental illness.
Seizures that appear to involve all areas of the brain are called generalized seizures. Different types of generalized seizures include:
Seek immediate medical help if any of the following occurs:
If you experience a seizure for the first time, seek medical advice.
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Nerve cells (neurons) in the brain create, send and receive electrical impulses, which allow the brain's nerve cells to communicate. Anything that disrupts these communication pathways can lead to a seizure.
The most common cause of seizures is epilepsy. But not every person who has a seizure has epilepsy. Sometimes seizures happen because of:
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After a seizure, your doctor will thoroughly review your symptoms and medical history. Your doctor may order several tests to determine the cause of your seizure and evaluate how likely it is that you'll have another one.
Tests may include:
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Having a seizure at certain times can lead to circumstances that are dangerous for you or others. You might be at risk of:
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Here are some steps you can take to help with seizure control:
Seizures don't usually result in serious injury, but if you have recurrent seizures, injury is a possibility. These steps can help you avoid injury during a seizure:
It's helpful to know what to do if you witness someone having a seizure. If you're at risk of having seizures in the future, pass this information along to family, friends and co-workers so that they know what to do if you have a seizure.
To help someone during a seizure, take these steps:
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If you're living with a seizure disorder, you may feel anxious or stressed about what your future holds. Stress can affect your mental health, so it's important to talk with your health care professional about your feelings and seek ways you can find help.
Your family can provide much-needed support. Tell them what you know about your seizure disorder. Let them know they can ask you questions, and be open to conversations about their worries. Help them understand your condition by sharing any educational materials or other resources that your health care professional has given you.
Meet with your supervisor and talk about your seizure disorder and how it affects you. Discuss what you need from your supervisor or co-workers if a seizure happens while at work. Consider talking with your co-workers about seizure disorders â you can widen your support system and bring about acceptance and understanding.
Remember, you don't have to go it alone. Reach out to family and friends. Ask your health care professional about local support groups or join an online support community. Don't be afraid to ask for help. Having a strong support system is important to living with any medical condition.
Source: http://www.mayoclinic.com
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