Head Injury A head injury can be as mild as a bump, bruise, or cut on the head, or can be moderate to severe because of a concussion, deep cut, fractured skull bone(s), or internal bleeding. Traumatic Brain Injury Acquired brain injury occurs when a sudden, external, physical assault damages the brain. It is one of the most common causes of disability and death in adults. Traumatic Brain Injury A traumatic brain injury (TBI) is exactly what it sounds like. This is a type of brain injury caused by a trauma. Concussion Sometimes called a mild traumatic brain injury, a concussion is caused by a blow or a jolt to the head. Concussions: Caution Is a No-Brainer Although concussions range from mild to severe, they're all serious injuries that can harm the way the brain works. Taking Care of Head Injuries The most common causes of head injuries are auto and motorcycle accidents, falls and violent assaults. Rehabilitation for Post-Traumatic Brain Injury Traumatic brain injury (TBI) occurs when a sudden injury causes damage to your brain. If you have experienced a TBI, rehabilitation may be an important part of your recovery. Acute Spinal Cord Injury Many types of trauma can cause an acute spinal cord injury. The more common types occur when the area of the spine or neck is bent or compressed. Spinal Cord Compression Spinal cord compression is caused by any condition that puts pressure on your spinal cord. Your spinal cord is the bundle of nerves that carries messages back and forth from your brain to your muscles and other soft tissues. How a Spinal Cord Injury Affects the Body A spinal cord injury can keep your brain and body from communicating normally. If you've had a spinal cord injury, you may need surgery or other treatments to address the injury.