In general, the life span of stent placement in cerebral infarction is permanent and lifelong, but it must be judged according to the actual situation, because there are also corresponding conditions such as patency rate after stent placement in cerebral infarction. After the stent is placed in brain infarction, it is not the end, but there are regular reviews and long-term oral anticoagulant drugs for maintenance, so as to ensure the function of the stent is intact as much as possible. In some clinical cases, acute thrombosis after stent placement in cerebral infarction is a failure, so that the stent can only be placed in the corresponding intracranial area and cannot be completely removed. If the stent is controlled by active medication at a later stage, and the symptoms are not further aggravated, the review is good, and the patency rate is also high, it cannot be removed even if it is placed in the skull for a lifetime. Therefore, it must be judged according to the actual situation, and it is generally impossible to remove it after it is put in.