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Types Of Traumatic Brain Injuries And Their Common Causes

As described by the Brain Injury Association of America, there are two forms of brain injuries, acquired brain injury (ABI), which is brought on by internal factors like an inadequate supply of oxygen, and traumatic brain injury (TBI), which is brought on by external sources. 

According to the Centers for Disease Control and Prevention (CDC), a TBI may have negatively affect a person’s ability to:

  • think (recollection and reasoning)  
  • process and encounter feelings (such as taste, touch, and smell)
  • talk to other people (speaking and understanding)
  • manage their feelings and social interactions

While some TBI survivors can bounce back and live regular lives, plenty of others never regain cognitive function. Therefore, anyone who has sustained a traumatic brain injury must speak with experienced TBI advocates such as the Hawk Firm brain injury lawyers as soon as reasonably possible in order to handle the claim and strive toward the maximum recovery possible.

Types Of Traumatic Brain Injury

TBI comes in a variety of forms and severity levels, including:

Mild traumatic brain injury

TBI from concussions is the most prevalent kind. Concussions account for 3 out of every 4 TBIs each year. These mild traumatic brain injuries (mTBIs) can cause short-term loss of consciousness or a feeling of being "dazed" for some minutes. Confusion can last for roughly a day in those with an mTBI, but it is different from issues with concentration or memory.

Moderate traumatic brain injury

A moderate traumatic brain injury (TBI) is characterized by a loss of consciousness lasting longer than 30 minutes but less than 24 hours. 

Up to a week can pass before confusion clears.

Severe traumatic brain injury

When a person suffers a severe TBI, they are unconscious for more than a day. Changes in the brain MRI or head CT scans are frequently linked to these traumas.

Uncomplicated traumatic brain injury

In this type, head CT and brain MRI results are normal regardless of mild, moderate, or severe grade.

Complex traumatic brain injury

The TBI is complex when some brain changes, such as hemorrhage, are seen on a head CT or brain MRI.

Closed traumatic brain injury 

A closed TBI occurs when an external force strikes the head suddenly but without penetrating the skull. The brain is injured by this hit, which causes it to expand.

Open traumatic brain injury

A penetrating TBI is what medical professionals refer to as an open TBI. A bullet, blade, or other object passing through the skull causes this damage. Brain tissue is directly impacted if these items enter the brain.

Nontraumatic TBI:

Sometimes referred to as anoxic/hypoxic brain damage, a few TBIs are not caused by trauma. They can be caused by strokes, convulsions, choking, and near-fatal accident, among other things. These events may deplete the brain's oxygen supply (cerebral hypoxia).

Common Causes Of Traumatic Brain Injury

Many brain injuries are caused by avoidable accidents. They are the results of the reckless, irresponsible, and sometimes even deliberate conduct of others. Leading contributors to TBI include:

Vehicle accidents

TBI can occur when a person is ejected from a car, bike, truck, or bicycle and hits the ground, crashing into an object upon contact, or when they are struck by flying objects during an accident. Brain injuries are one of the most frequent injuries when a speeding motorist hits a pedestrian.

Slip and fall

Falls may result and lead to brain injuries when careless property owners permit hazardous circumstances to persist on their property, such as liquid spills, ice, and snow, ripped or fraying carpets, defective stairs, uneven floors, worn rails, or inadequate illumination. 


Brain injuries are frequently caused by falls from heights like ladders, scaffolding, and rooftops. TBI can also result from being hit by tools and equipment, as well as from collisions with forklifts, lorries, or other vehicles in construction or industrial sites.

Medical malpractice

Many babies experience lifelong brain damage due to the carelessness of medical personnel during pregnancy and delivery. Cerebral palsy, a permanent impairment, can be brought on by traumatic brain injury to a fetus or newborn infant, which is frequently caused by incorrect force or pressure on the fetus's head. Here's what you should know about medical negligence claims.


Many kids sustain TBI while participating in sports. The inability of coaches or trainers to provide young athletes with the correct protective equipment or to effectively handle concussions when they occur could result in lifelong brain damage.

Bottom Line

A traumatic brain injury is one of the deadliest types of injuries a person can sustain. An attorney should be contacted in tthe early stages.