The common types of head injuries are intracranial haemorrhage (ICH), contusions 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 is a bruise of the brain tissue.

3) Skull fracture is a break in the bone of the skull. Some fractures are depressed and result in deformity of the skull bone.