The side effects of brain pacemaker surgery are relatively obvious. First, the process of chaotic discharges and non-discharges, because after all, the pacemaker of the brain is a device, and there are times when the malfunctioning of the device may also cause abnormal discharges. Therefore, it can also cause the patient’s epilepsy to recur, or regenerate the situation of new epileptic foci. Therefore, it is relatively common among the clinics, and the pacemaker of the brain, which has a certain time demand for the battery, if the battery is not replaced at the specified time, certain side effects may also occur. Second, the risk of infection. After all, the brain pacemaker is placed on the foreign body, and the human body on the foreign body have the most basic rejection reaction, especially in the process of placing, there is an intracranial infection, often in the late stage there will be a variety of fever, headache, nausea, vomiting, and a series of infections such as changes, and even need to be carried out will be electrodes pacemaker re-removal. Third, it may cause bleeding in the brain, because after all, the process of implantation into the brain has to go through a certain number of blood vessels, and after the operation, the displacement of the pacemaker caused by strenuous activities may also scratch the blood vessels, so there is a possibility of forming bleeding in the brain as a side effect.