Abnormal electrical activity in the brain triggers seizure activity. A person may have a seizure disorder (epilepsy) and require medications. Other factors such as hypoglycemia (low blood sugar), which is a diabetic reaction, may cause seizures. Meningitis or a head injury may also cause a seizure.
Fainting can also cause a series of jerking movements as the person loses consciousness. These movements do not necessarily indicate a seizure.
Medically Reviewed by a Doctor on 8/14/2014
Scott H Plantz, MD, FAAEM
N Stuart Harris, MD, MFA
Francisco Talavera, PharmD, PhD
James Kimo Takayesu, MD
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