The venous system of the brain mainly includes the cerebral veins and the venous sinuses into which they enter. Cerebral venous thrombosis (CVT) is a special type of cerebrovascular disease, which can be divided into venous sinus thrombosis and cerebral venous thrombosis. The clinical manifestations mainly include headache, vomiting, vision loss. Some patients are usually accompanied by seizures and limb paralysis, and even drowsiness and disturbance of consciousness.