In clinical practice, to determine whether there is intracranial hemorrhage after bumping the head, we mainly rely on imaging examinations, such as emergency head CT and head MRI, to clarify the intracranial status. If there is intracranial hemorrhage, CT will show a high-density image, while for MRI, different analysis will be performed according to different sequence items. In addition, it should be combined with clinical symptoms. Generally, after intracranial hemorrhage, many patients will have severe headache, dizziness, nausea, vomiting, hemiplegia, speech dysfunction, and even some bleeding is relatively large, which will also cause disorders of consciousness, such as coma, etc. Therefore, the actual condition of the patient must be judged in conjunction with the actual condition of the patient, and the two together can be clarified in order to be more helpful in differential diagnosis and reduce missed diagnosis and misdiagnosis.