The surgical risk of cerebral thrombosis actually refers to the surgical risk of patients with cerebral thrombosis. There are three main types of surgery required for patients with cerebral thrombosis: the first one, for large cerebral thrombosis, patients need to do cranial debridement decompression surgery because brain herniation may be formed. The risk of this surgery is mainly the occurrence of postoperative bleeding, including subdural hematoma and rebleeding within the infarcted lesion, manifesting as mixed stroke. The second one, if it is within 3-6 hours of onset, can be done under the condition of emergency vascular intervention for thrombolysis, or embolization. This is a minimally invasive procedure, also called interventional procedure, and its risk is mainly the occurrence of intracranial hemorrhage. The third type, mainly cerebral thrombosis is treated with stenting surgery, and its risk is mainly plaque dislodgement, causing distal obstruction and infarction.