People may also refer to this as an open head injury. This is a type of brain injury where a bullet, knife, or other sharp object penetrates the skull and enters the brain. This is a bruise or bleeding in the brain that’s due to a blow or jolt to the head. It can be the result of a closed or penetrating head injury. This injury causes impairment in brain function. This head injury occurs when an outside force, such as a blow to the head, doesn’t penetrate the skull, but it causes injury and brain swelling.

Traumatic brain injuries occur due to a blow, shaking, or strong rotational injury to the head that damages the brain. What are the types of injuries that cause brain damage?ĭoctors usually divide brain damage into two categories: traumatic and acquired.