I. Etiology About half of people with epilepsy cannot find a clear cause, and the other half may be traced to a number of causes: Genetic factors Certain types of epilepsy occur from time to time in families, suggesting some heritability. Researchers have found that certain types of epilepsy are associated with specific genes, and there are an estimated 500 genes associated with epilepsy. For most people, genes are only partly responsible for seizures and may make patients more sensitive to external seizure-triggering environments. Head trauma Head trauma from a car accident or other cause can lead to seizures Internal diseases Encephalitis, meningitis, AIDS, stroke or heart attack, resulting in brain damage, can cause seizures. half of all epilepsy patients over 35 years of age have a stroke as the cause. Dementia The leading cause of epilepsy in older patients. Prenatal brain injury Prenatal fetal malnutrition, hypoxemia, and maternal infections predispose the fetus to brain injury, leading to cerebral palsy. About 20% of seizures in children are associated with cerebral palsy or neurological abnormalities. Developmental abnormalities In some cases, seizures may be associated with certain developmental abnormalities. Second, high-risk factors Certain factors may increase the likelihood of seizures. Age Seizures can occur at any age, but are more common in early childhood and after age 65. Sex Males have a slightly higher incidence than females. Family history The risk of seizures may be increased if there is a family history of seizures. Head trauma is the cause of morbidity in many patients. Wearing a seat belt when riding in a car and wearing a helmet during sports where head trauma may occur, such as biking or skiing, may reduce head trauma. Stroke and other cardiovascular diseases Brain damage from these diseases may trigger epilepsy. Taking measures such as quitting smoking and drinking, eating a healthy diet, and exercising regularly will reduce the occurrence of these diseases. Brain infections Such as meningitis, which causes inflammation of the brain and spinal cord and increases the risk of seizures. Prolonged convulsions in childhood Fever in childhood may induce prolonged convulsions that may later lead to seizures, especially if there is a family history of epilepsy.