How long it takes to recover from a subarachnoid hemorrhage intervention is related to the grade of the patient’s cerebral aneurysm. It can be as short as a few weeks or as severe as a lifetime. Clinically, the cause of subarachnoid hemorrhage is usually the rupture of cerebral aneurysm caused by bleeding, according to the Hunt-Hess classification is divided into a mild headache level 1, severe headache level 2, level 3 drowsiness, level 4 coma, level 5 deep coma, these five levels. For Grade I and Grade II patients, it usually takes two to three weeks for the patient to return to normal life. For Grade 3 patients, the recovery time is relatively longer, taking a month or two. Grade 4 coma patients, it may take several months to recover, or even may not be able to recover, and grade 4 cerebral aneurysm rupture bleeding patients, even if the interventional surgery treatment, to a large extent, can not be recovered, and even if recovered, most of them may be left with serious sequelae. If you have any discomfort, consult a doctor in time and follow the doctor’s instructions, do not diagnose or treat yourself to avoid delaying your condition.