• Age 18 or above；

• Patients with a clear history of head trauma and confirmed acute epidural hematoma by head CT；

• Cases that the case screening committee deems suitable for conservative treatment\*；

• Randomly within 6 hours after injury, and initiate treatment within 8 hours after injury；

• Epidural hematoma located on the convex surface of the brain (frontal, temporal, parietal, or occipital)；

• The patient or their representative agrees and signs an informed consent form. \* The case screening committee is composed of three senior neurosurgeons, with two of them jointly deciding whether conservative treatment is possible. If there is a disagreement, the third doctor will make the final judgment. Including but not limited to the following two situations: 1. Hematoma volume\<30ml, hematoma thickness\<15mm, midline shift (MLS) \<5mm, GCS score\>8, and no focal neurological deficit; 2. If the GCS score is ≥ 13, the imaging standards can be appropriately relaxed.