The common types of head injuries are intracranial haemorrhage (ICH), contusion and skull fractures.
1) Intracranial haemorrhage (ICH) is caused by damaged blood vessels and leads to bleeding within the brain. The bleeding can be minor or severe, which requires emergency surgery. Examples are epidural haematoma or subdural haematoma.
2) Contusion refers to a bruise of the brain tissue.
3) Skull fracture refers to the broken bone of the skull. Some fractures are depressed and results in deformity of the skull bone.