The sequelae of cerebral aneurysm surgery are basically similar to other craniotomy sequelae, which mainly include: 1. cranial defect, if the cerebral aneurysm rupture bleeds a lot and causes cerebral edema, it may be necessary to perform debridement decompression surgery, if debridement decompression is performed, cranial defect will be left behind; 2. vegetative survival state, if the cerebral aneurysm bleeds a lot and causes the patient’s consciousness If an aneurysm ruptures, it is easy to cause subarachnoid hemorrhage, which will cause cerebrospinal fluid circulation disorder and finally lead to hydrocephalus.