Although delayed traumatic intracerebral hematoma has been reported for a long time, it was only after the application of CT scan that it was more frequently detected and attracted attention. It refers to the first CT examination after head trauma that did not reveal an intracerebral hematoma, and only after some time after reexamination did it appear that there was a hematoma in the brain, or after a period of time after clearing the intracranial hematoma, another hematoma was found in a different part of the brain. The clinical features of this disease can be summarized as moderate to severe craniocerebral injury due to decelerative violence in middle-aged and elderly patients, with progressive worsening of signs and symptoms or limited epilepsy and progressive deterioration of consciousness within 3 to 6 days after the injury, especially in cases with previous hypotension, cerebrospinal fluid outflow, hyperventilation or strong dehydration. Therefore, in cases of delayed traumatic intracerebral hematoma, the condition is very serious and often suggests a very poor prognosis.