Clinically, there are many reasons for cerebral thrombosis in patients. Among them, atherosclerosis is the most common and important. Of course, vascular wall lesions, vascular injuries, heart failure, atrial fibrillation, etc. caused by rheumatism, syphilis, tuberculosis, etc. will also lead to cerebral thrombosis in patients. There are also some changes in blood components, such as polycythemia vera, hyperviscosity, hyperfibrinogenemia, oral contraceptives, which lead to thrombosis, and can cause cerebral thrombosis in patients. It is suggested that patients with risk factors should actively control risk factors in their daily life to prevent the occurrence of cerebral thrombosis.