Brainstem thrombosis can be partially cured by active treatment. Brainstem thrombosis is an arteriosclerotic occlusion or stenosis of the blood vessels supplying the brainstem, resulting in localized brain tissue necrosis, which affects the patient’s limb movement or the patient’s consciousness. Patients may show symptoms such as hemiparesis and weakness of the limbs, as well as numbness of the limbs, or dizziness, choking on water, and clumsy speech. Through active treatment, such as choosing thrombolysis, or treatment with fibrin-lowering, anticoagulation and antiplatelet programs during the acute stage of cerebral infarction to improve cerebral blood flow or establish collateral circulation and save the ischemic semidark zone, it is possible that the patient’s symptoms will gradually improve and gradually reduce. However, if the area of blockage is larger, the patient may also be left with symptoms such as limb hemiparesis.