Head Trauma Historyv15th Century Greek paintingOutlinevScalp InjuryvSkull FracturesvHemorrhagic ContusionvIntracranial Hematoma Epidural HematomaEpidural Hematoma Subdural Hematoma Subdural Hematoma Intracerebral Hematoma Intracerebral HematomaScalp InjuryScalp AnatomyScalp Injury and TreatmentvLaceration- Debridement (清创)vAvulsion- Grafting; DermoplastyvSub-galea Hematoma-Observe; Evacuation and CompressionAvulsionSkull FractureSimple linear fracture TreatmentvObservevWatch out for the complica