The time of coma in patients with cerebral infarction is during the acute period, that is, about 3 days after the onset of the disease. The cause of the patient’s coma is mainly related to local cerebral edema, which can gradually subside after using intravenous thrombolysis, stenting and embolization, dehydration, cranial pressure reduction, cerebral protection, antiplatelet and other treatments, and the patient can gradually return to consciousness after 3 days. Patients with good treatment effect may even regain consciousness on the same day immediately after thrombolysis or embolization. However, patients with extremely severe cerebral infarction and coma, such as occlusion of the main middle cerebral artery or the main basilar artery, may remain in coma for a longer period of time, which may last for more than 1 week. Patients with particularly severe disease or serious complications such as lung infection or brain herniation may remain in coma or even die. Therefore, how long a coma lasts in a patient with cerebral infarction also depends on the severity of the disease and the timeliness of treatment.