After a head injury

Unreported Concussions and Treatment Resistance

A concussion does not need an ambulance, a scan, or a diagnosis to count as something worth mentioning later. Plenty of them happen in a driveway, on a job site, in a car that was still drivable afterward, or at a practice nobody stopped. You sat down for a minute, the day went on, and no file anywhere records that it happened. Years later you are in a fifteen minute appointment describing a low mood that has not eased through two medication trials, and that afternoon is nowhere in the chart your prescriber is reading.

This page is about that gap. Not because an old impact explains a difficult depression, and not because it points toward one particular treatment, but because it is context your prescriber cannot guess and will almost never ask about directly.

Why these impacts stay off the record

Losing consciousness is not required for a concussion. When someone stays on their feet, talks normally, and drives home, the moment rarely gets filed as an injury by anyone present, including the person it happened to. The language people use at the time tells you how it gets coded in memory: got my bell rung, saw stars, walked it off, had a headache for a couple of days.

There are other reasons the record stays blank. Reporting a hit can mean sitting out a season, losing a shift, starting a claim, or admitting you were somewhere you should not have been. Symptoms in the first weeks, poor sleep, short patience, trouble holding a thought, light that feels too bright, read like an ordinary stretch of being run down. By the time a mood problem is the main complaint, the impact is two jobs and one move in the past, and it does not feel related enough to bring up.

Domestic violence and repeated minor collisions create a version of this that is even quieter, because the reason for the visit was never the head to begin with.

What a prescriber actually does with it

A history of head injury is a risk factor for depression that is harder to treat. That is the honest framing, and it is worth being precise about what a risk factor is not. It is not a diagnosis, it is not proof that your depression started there, and it is not an indication for any specific medication or procedure. Nobody can look at an impact from 2014 and tell you why a medication did not work in 2026.

What it does is change the questions. Depression that resists treatment is often depression with something else running alongside it that has not been named yet. Sleep apnea, a concussion that left ongoing headaches, vestibular symptoms that make crowded rooms exhausting, a vision convergence problem that turns screen work into a grind, alcohol used as a sleep aid, pain medication, thyroid function, an unrecognized bipolar pattern. A prescriber who knows about the impact is more likely to ask about sleep and headaches with real attention, and more likely to send you for an evaluation of symptoms you had stopped mentioning because they seemed like your new normal.

That can move you out of a category you may have been placed in by accident. Two medications that did nothing is a different situation when one of them was stopped at week three for nausea and the other was never raised past a starting dose. Before anyone calls a depression treatment resistant, the trials behind that label deserve a look.

How to raise it in a short appointment

Write it down before you go and hand over one page. Ask for it to go in the record, so you are not starting from zero at the next visit.

Useful items: roughly when each impact happened, even if you only have a season and a year, how many there were, whether you were dazed or lost time, what the following two weeks felt like, and whether your mood shifted before or after. Then the current picture: how you sleep, how often you get headaches, how you do with noise and light, how much you drink, what you take and at what dose. If someone who was there remembers the hit better than you do, their account belongs on the page too.

Say plainly what you want from the information. A sentence like this works: I am not asking you to blame my depression on a head injury, I want it in the chart because I have read that it can make treatment less straightforward.

Where treatment options fit

Next-line depression care exists and is ordinary medicine. The menu is familiar: tracking symptoms visit to visit with a brief scale, carrying a dose all the way up to a true trial rather than abandoning it halfway, adding a second agent on top of the first, transcranial magnetic stimulation, and esketamine offered as Spravato under its REMS program. Adults who have already worked through enough serious attempts without relief are who those options exist for. Note the wording carefully: those are depression indications. No drug and no device carries an approval for concussion or for traumatic brain injury, so a marketing page that hints at one has crossed from optimism into plain falsehood.

Be similarly careful with anyone who promises an outcome, describes a treatment as undoing an old injury, or quotes you numbers about how well their patients do. A clinic willing to write plainly about low mood following a crash or a fall is the better place to begin, and Brain Recovery Centers maintains one such page about mood shifts following a collision, which previews the tone and the intake questions a first conversation tends to cover.

None of this turns an unreported concussion into an answer. It turns it into information. For a depression that has not moved in the direction you hoped, handing your prescriber an accurate history is one of the few things entirely within your control, and it costs nothing but the time it takes to write the page.