Fracture may lead to cerebral infarction, and there are two kinds of cerebral infarction after fracture: firstly, direct infarction is caused by fracture of the lower limb or pelvis, the fat droplets inside the bone marrow cavity enter into the blood circulation, which violates the blood vessels of the brain through the blood circulation, and embolizes the blood vessels of the brain, thus leading to cerebral infarction. Secondly, indirectly cause cerebral infarction, usually seen in middle-aged and old people who usually have high blood pressure, diabetes or elevated blood fat, due to the stimulation after the fracture and injury may lead to the body or neck blood vessel embolism, which through the blood circulation into the blood vessels of the brain inside the brain to appear cerebral infarction.