Some patients with epilepsy have recurrent seizures despite long-term medication and cannot be completely cured. The following is an introduction to the relationship between several common causes of epilepsy and the effects of drug therapy: 1. 2, certain congenital diseases: such as tuberous sclerosis, cerebral trigeminal hemangiomatosis, neurofibromatosis, etc., the prognosis is also poor. 3. Brain tumors: The prognosis of epilepsy caused by brain tumors depends on the nature, location, size and eradication of the tumor; on the other hand, even if the tumor is eradicated, the scar left by the surgery can still become an epileptogenic focus. On the other hand, even if the tumor is eradicated, the scar left behind by the surgery may still become the epileptogenic focus. This kind of surgery should be sought in functional neurosurgery or epilepsy surgery, which can achieve the purpose of solving tumor and epilepsy at the same time. And the prognosis of epilepsy caused by metastatic brain tumor is definitely bad. 4. Cerebrovascular disease: In elderly patients with epilepsy, the main cause is cerebrovascular disease (such as cerebral arteriosclerosis, cerebral hemorrhage, cerebral infarction, etc.), and a few brain tumors or brain metastases. The prognosis of epilepsy caused by cerebrovascular disease is generally poor, with only 50% of patients in complete remission and a high recurrence rate. 5, traumatic epilepsy: prognosis is still determined by the location and nature of the trauma, the duration of coma, the degree of brain injury with or without intracranial infection, and other factors. Seizures that occur within minutes of milder head trauma usually have only one seizure and no further seizures, which has the best prognosis. Patients who have only a few seizures after trauma have a good prognosis. The acute phase of encephalitis is often accompanied by varying degrees of seizures, and some patients with encephalitis can also have seizures after they have recovered. The patient is usually taking anti-epileptic drugs can control the seizures, the prognosis is relatively good. It has been reported that in patients with encephalitis and meningitis with epilepsy, 53.3% of patients with encephalitis or meningitis can have complete remission of seizures after healing, but the prognosis for patients with severe sequelae of encephalitis with frequent seizures is not good. 7. Cerebral parasitic diseases (such as cysticercosis): cerebral cysticercosis is one of the common causes of epilepsy in adults, and 50%-70% of patients with cerebral cysticercosis have seizures. The prognosis of epilepsy caused by cerebral cysticercosis is key to anti-cysticercosis treatment. As we can see, early diagnosis and treatment plan can prevent patients who are suitable for or must be treated surgically from taking drugs for a long time, which can reduce the economic burden and the damage to the body caused by the side effects of drugs, and also avoid the aggravation of the disease caused by uncontrollable and recurrent seizures, the formation of new and more extensive epileptic foci in severe cases, and the eventual loss of surgical opportunities; moreover It can also avoid sudden death caused by frequent seizures. As for finding the cause, the most common method is cranial magnetic resonance imaging (MRI), which is necessary for every patient and cannot be replaced by other tests, although it is relatively expensive. In the early stages of the disease, the patient and the physician work closely together to develop a rational and individualized treatment plan that will yield twice the results.