Abstract: Objective To analyze the relevant factors of traumatic delayed intracranial hem-orrhage and its relationships with abnormal coagulation.Methods According to intracranial hemor-rhage condition,236 patients with craniocerebral trauma were divided into delayed hemorrhage group and non-delayed hemorrhage group.Routine coagulation indicators 2~12 hours after hospital admission were compared between two groups,including prothrombin time (PT),thrombin time (TT),fibrinogen (FIB),blood platelet count (PLT),activated partial thrombin time (APTT) and prothrombin international normalized ratio (INR),and the relevant risk factors of traumatic de-layed intracranial hemorrhage were analyzed as well.Results PT,TT,APTT and INR in delayed hemorrhage group were significantly longer and higher than non-delayed hemorrhage group,but PLT was lower than non-delayed hemorrhage group.The incidence rate of delayed intracranial hem-orrhage increased when abnormal coagulation indexes ≥2 items.Gender,presence or absence of complications,GCS scores and abnormal coagulation function were closely related to delayed in-tracranial hemorrhage.Conclusion Main risk factors of delayed intracranial hemorrhage are gender, presence or absence of complications,GCS scores and abnormal coagulation function.When abnor-mal coagulation indexes ≥2 items,it is more likely to cause delayed intracranial hemorrhage.