Thousands of post-9/11 veterans may have spent years living with the effects of a traumatic brain injury without receiving the complete follow-up evaluation they were supposed to get from the Department of Veterans Affairs.

For veterans who have moved into federal employment, defense contracting, or other cleared careers, that’s more than a health care issue. It could mean years of trying to understand problems with concentration, memory, headaches, sleep, irritability, or other symptoms without knowing that an injury sustained during military service could be contributing to them.

According to reporting from Military.com, the VA failed to complete required follow-up evaluations for roughly 142,000 post-9/11 veterans who screened positive for a possible traumatic brain injury.

That number deserves attention across the veteran community. But for the cleared workforce, there is another question worth asking:

How many veterans carried an unidentified or insufficiently evaluated brain injury from the battlefield into their civilian careers?

A Positive Screen Was Supposed to Start Something

Traumatic brain injuries became one of the signature injuries of the wars in Iraq and Afghanistan.

Improvised explosive devices, vehicle accidents, training incidents, falls, weapons fire, and repeated exposure to blasts created circumstances where service members could experience brain injuries without the obvious physical wounds traditionally associated with combat.

Recognizing that problem, the VA established screening procedures for veterans who served during the post-9/11 era. Think PACT Act, but for concussive injuries. But screening for a possible TBI isn’t the same as diagnosing one.

A positive screen is supposed to trigger additional evaluation to determine whether a veteran actually experienced a traumatic brain injury and, if so, what treatment or support may be necessary. And for approximately 142,000 veterans, according to the new findings, that process wasn’t completed.

That means the system may have flagged a warning sign without fully answering the next question.

Why This Matters Years Later

A veteran doesn’t stop experiencing the effects of military service when they receive a DD-214. Many post-9/11 veterans have moved into exactly the kinds of careers that make up the ClearanceJobs community: intelligence, cybersecurity, federal law enforcement, defense contracting, aerospace, engineering, and government service.

Those jobs often demand sustained concentration, attention to detail, memory, decision-making, and the ability to operate effectively under stress. Those are also areas that can potentially be affected following a traumatic brain injury. That doesn’t mean every headache, forgotten task, or difficult day at work is evidence of a TBI.

It does mean veterans who screen positive and never receive the appropriate follow-up may be denying themselves an opportunity to understand what is happening to them. And some may have spent years blaming themselves for difficulties that deserved medical evaluation.

This Can Affect VA Benefits, Too

There is another practical consequence. A proper diagnosis and medical documentation can matter when veterans seek disability compensation for service-connected conditions. TBI claims can be particularly complicated because the effects of brain injuries can overlap with other conditions.

Problems involving memory, concentration, sleep, mood, and other functions may occur alongside PTSD, depression, or other service-connected disabilities. Establishing what happened, when it happened, and what residual effects remain can therefore become important both medically and during the VA disability process.

If a veteran screened positive for a potential TBI but never received the required comprehensive evaluation, an important piece of that medical history may be missing. For some veterans, correcting that gap could potentially mean revisiting questions they thought were settled years ago.

The VA Has Been Here Before

This isn’t the first time the VA’s handling of traumatic brain injury examinations has faced scrutiny.

A previous VA Office of Inspector General review found that the department failed to properly implement procedures surrounding initial TBI examinations after changing its evaluation criteria in 2008. The problem eventually led the VA to notify more than 24,000 veterans in 2016 that they could receive new examinations and disability determinations because questions remained about whether qualified medical specialists had performed their original evaluations.

The latest findings involve a different issue, but the history makes the scale of the current problem more difficult to dismiss. For veterans, an administrative failure doesn’t remain administrative when it prevents someone from receiving an evaluation that could affect their health or benefits.

What Cleared Veterans Should Know

There’s an important distinction here for security clearance holders. Having a traumatic brain injury does not automatically mean someone cannot hold a clearance. And neither does seeking medical treatment.

The security clearance process focuses on whether circumstances raise concerns about an individual’s judgment, reliability, or ability to safeguard classified information. Medical treatment itself should not be viewed as something cleared professionals need to avoid. If anything, the bigger lesson is the opposite.

Veterans who believe they may have experienced a TBI shouldn’t ignore symptoms. Much like mental health difficulties, it is understandable that they’re worried that asking questions could somehow damage their careers. But, much like a mental health concern, understanding a medical condition and receiving appropriate care can help someone manage it.

Ignoring it doesn’t make it disappear.

142,000 Is More Than a Number

The sheer size of this group is what makes the VA’s failure significant. These aren’t simply unfinished forms sitting somewhere in a database. They represent veterans who raised enough concerns during screening to warrant additional evaluation.

Some may ultimately have no TBI diagnosis, and others may have already received treatment elsewhere. But there may also be veterans who spent years wondering why their memory wasn’t what it used to be, why concentrating became harder, or why they simply didn’t feel like the same person they were before a deployment.

For those veterans, discovering that a follow-up evaluation should have happened years ago could be frustrating. It could also provide an opportunity. Post-9/11 veterans have now been home from some of America’s longest wars for years, in some cases, decades.

That doesn’t mean every injury from those wars has been identified.

For approximately 142,000 veterans, there may still be an unanswered question sitting in their medical history. It’s worth finding out what happened next.

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Aaron Knowles has been writing news for more than 10 years, mostly working for the U.S. Military. He has traveled the world writing sports, gaming, technology and politics. Now a retired U.S. Service Member, he continues to serve the Military Community through his non-profit work.