Traumatic Brain Injury (TBI) is one of the most common injuries found in former combat veterans.

In fact, health officials have noticed an uptick in TBIs in military service members who served in Iraq and Afghanistan in the past decade.

This guide will break down the basics of TBIs and how the VA rates them, as well as the requirements for proving secondary service connection.

It will also look at TBI trends in veterans who served in Afghanistan and Iraq.