What causes epilepsy?

Written by Liu Shi Xiang
Neurology
Updated on March 15, 2025
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The causes of epilepsy mainly include some congenital factors, such as pathological changes during pregnancy or childbirth, which can lead to the occurrence of epilepsy in children. In adults, epilepsy is generally secondary to severe head trauma, cerebrovascular disease, intracranial tumors, encephalitis, etc. Therefore, for patients with epilepsy, it is first necessary to actively remove various inducements and then to treat according to the type of epileptic seizures. Epilepsy mainly includes generalized seizures and partial seizures. Patients with generalized epileptic seizures can take medications such as sodium valproate and diazepam for treatment. Patients with partial epileptic seizures can take medications such as carbamazepine, oxcarbazepine, gabapentin, and levetiracetam for treatment. Generally, the symptoms of epilepsy can be effectively controlled after patients follow a standardized medication treatment regimen.

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Written by Li Jiao Yan
Neonatology
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What are the symptoms of epilepsy in children?

Epilepsy is a chronic brain disorder caused by various etiologies, characterized by repetitive, episodic, and transient central nervous system dysfunction due to abnormal and excessively synchronized discharges of brain neurons. The clinical manifestations of childhood epilepsy are complex and varied, commonly including loss of consciousness, localized or generalized muscular rigidity or clonic convulsions, and sensory abnormalities; there may also be abnormal behaviors, emotional and perceptual disturbances, memory changes, and autonomic nervous system dysfunction.

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Written by Yuan Jun Li
Neurology
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What are the symptoms of abdominal epilepsy?

Patients with abdominal epilepsy can experience abdominal pain, and some may show symptoms of bloating, nausea, and vomiting, as well as diarrhea. Abdominal epilepsy is a type of epilepsy, commonly seen in children and adolescents. The symptoms generally recur and last mostly from three to five minutes. If the symptoms last more than five minutes, it is usually called a status epilepticus, and some antiepileptic drugs can be used to control the seizures. After an epileptic episode, an EEG might show spike-and-wave patterns. If the EEG is normal, a dynamic EEG can be conducted, which might increase the positive diagnostic rate for patients.

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Written by Tang Bo
Neurology
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How is epilepsy treated?

Epilepsy treatment can be divided into the following aspects: First is etiological treatment. If epilepsy is caused by tumors or cerebrovascular diseases, surgical removal of the lesion can relieve epilepsy, but seizures often still occur, so medication must not be stopped. Secondly, pharmacological treatment is necessary for epilepsy induced by unclear causes or genetic metabolic diseases. Treatment involves taking and adjusting medications under medical guidance, based on different types of seizures and individual patient circumstances. Additionally, for some cases where the cause cannot be clearly identified and no epileptic foci are found, functional surgery can be performed for treatment.

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Written by Liu Shi Xiang
Neurology
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Why does epilepsy occur at night?

Epilepsy that occurs at night is called sleep-related epilepsy. There are many reasons for this phenomenon, such as excessive fatigue, irregular sleep, menstrual onset, anxiety, depression, and more. Additionally, some patients exhale more carbon dioxide during sleep, causing hyperventilation and internal environmental imbalances, which can easily lead to abnormal discharges of brain neurons. When some patients experience symptoms of epilepsy at night, timely intervention and treatment are needed. First, patients should develop a good lifestyle, go to bed on time, get up on time, avoid staying up late, and avoid excessive fatigue. Furthermore, targeted medication should be given to prevent the onset of the condition. Common medications include lamotrigine, levetiracetam, carbamazepine, and sodium valproate. Besides, patients also need to maintain a good mindset and avoid tense and anxious emotions that could exacerbate symptoms.

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Written by Yan Xin Liang
Pediatrics
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What are the symptoms of epilepsy in children?

The typical symptoms of childhood epilepsy include sudden loss of consciousness, followed initially by tonic and then clonic convulsions, often accompanied by screaming, cyanotic facial complexion, frothing or bleeding at the mouth, dilated pupils, generally lasting 40 seconds or up to 15 minutes. The convulsive seizure stops naturally, followed by a state of coma. Of course, some affected children also display varying degrees of consciousness disorders, evident disruptions in thinking, perception, emotion, and psychomotor functions, and may show signs of conditions like somnambulism and noctambulism, among other automatisms.