For subacute cerebral infarction, it cannot be cured strictly speaking. Subacute cerebral infarction refers to cerebral infarction that is detected between two weeks and two months after the onset of the disease. The criteria for curing cerebral infarction are that the patient is revascularized, there is no brain cell necrosis, and there is no neurological deficit. However, the requirement of revascularization and absence of brain cell necrosis is very high, and it is only possible to achieve it by thrombolysis with alteplase within 4.5 hours after the onset of the disease and after the exclusion of contraindications. Therefore, subacute cerebral infarction occurs two weeks after the onset of the disease, so the time window for thrombolysis is definitely missed, and thrombolytic treatment cannot be performed and the vessel cannot be revascularized. After the occurrence of cerebral infarction, as long as more than 5 minutes, brain cells will become necrotic, and the brain cells after two weeks of onset have already become necrotic, and it is impossible to regenerate and cure. For the treatment of subacute cerebral infarction, the main purpose is to promote the generation of collateral circulation, rescue the ischemic semidark zone, and enable the surrounding brain tissues to compensate for the necrotic area to a certain extent, so as to improve the clinical symptoms.