There are a number of specific types of head injuries. Many people will have more than one type, such as a scalp contusion and a laceration.

Types of head injury include:

• Concussion:
• Temporary loss of brain function due to the injury
• Scalp contusion:
• Bruise to the skin of the head or scalp
• Penetrating head injury:
• Scalp laceration
• Scalp puncture wound
• Epidural hematoma:
• Bleeding inside the skull, but outside the lining to the brain
• Subdural hematoma:
• Bleeding under the lining to the brain
• Skull fracture
• Subarachnoid hemorrhage:
• Bleeding within the brain