Acquired epilepsy generally refers to secondary epilepsy. Secondary epilepsy is mostly epilepsy caused by organic disease in the brain and is not hereditary, so acquired epilepsy is not inherited. Generally, adults with no previous history of seizures may have seizures only after a particular serious organic disease in the brain, which is caused by abnormal synchronous discharges in the cerebral cortex resulting in abnormal blood oxygenation, called secondary epilepsy. Secondary epilepsy is generally not hereditary because such patients do not have brain damage or congenital symptoms at first, but epilepsy is only triggered by brain damage later in life. There are many factors that can cause brain damage, including cerebrovascular disease, tumors, inflammation, parasitic diseases, and trauma. The diseases caused by acquired factors are generally not passed on to children, who are in better health and can avoid these diseases, and will not develop acquired epilepsy.