Venous sinuses are not harmful until there is a lesion. The normal intracranial venous sinuses collect blood from the veins of the brain and then flow into the internal jugular venous system back to the right atrium. The venous sinuses include the superior sagittal sinus, the inferior sagittal sinus, the transverse sinus, the sigmoid sinus, and the straight sinus, which can be complicated by intracranial venous sinus thrombosis, such as inflammation of the face, otitis media, or stagnation of blood during the perinatal period in some women. The risk of intracranial venous sinus thrombosis is characterized by sudden aphasia and hemiparesis of one limb. Then some patients may have epileptic status epilepticus onset, increased intracranial pressure manifestations, such as headache, nausea, vomiting, as well as brain herniation, coma, endangering the patient’s life. So the danger of venous sinus varies according to the severity of the brain lesions after venous sinus thrombosis.