Almost nobody wakes up one day and decides to develop a substance problem. Usually something happened first, and often that something happened to them.
How Often They Occur Together
In the General Population
According to the VA’s National Center for PTSD, roughly 45 percent, more than four in ten adults with PTSD, also struggle with drugs or alcohol.
That’s not a small overlap. It’s nearly half.
Among Veterans
The same source found that veterans with a lifetime history of PTSD face about double the risk of alcohol problems and triple the risk of drug problems compared to veterans without PTSD.
Notice the drug figure outpaces the alcohol figure. Keep that in mind as we get into why people gravitate toward specific substances.
What PTSD Actually Is
The Four Symptom Clusters
PTSD gets diagnosed across four symptom groups, all triggered by exposure to trauma.
- Intrusion: unwanted memories, nightmares, flashbacks. The event forcing its way back in.
- Avoidance: steering clear of reminders, whether people, places, conversations, or entire lines of thought.
- Negative shifts in thinking and mood: persistent shame, guilt, blame, lost interest, feeling cut off from others, a belief that the world is dangerous or that you’re permanently broken.
- Changes in arousal and reactivity: staying constantly on edge, startling easily, sleeping poorly, quicker irritability, trouble focusing, sometimes recklessness.
Complex PTSD
Regular PTSD usually traces back to one event. Complex PTSD comes from something repeated or drawn out, often starting in childhood, often with someone the person had no way to get away from.
It includes everything above, plus more trouble regulating emotion, a shakier sense of self, and strained relationships. It also tends to slip under the radar, since the person may have never known anything different and doesn’t think to connect how they feel to what happened to them.
What It Is Not
PTSD is not a normal reaction that overstayed its welcome. Most people who go through something traumatic don’t develop it. It has nothing to do with weakness, and no amount of thinking it through fixes it on its own.
Nor is it the same as simply having a rough past. Plenty of people carry hard histories and never meet the criteria for PTSD at all.
Why People Self-Medicate
“Self-medication” sounds like a vague catch-all, but it’s actually pretty specific. People aren’t grabbing substances at random. They’re reaching for whatever handles the exact thing they’re dealing with.
Alcohol and Hyperarousal
Hyperarousal wears a person down. The body stays wound up all day, and it’s difficult to power off at night. When someone is desperate for help, alcohol might seem like a good idea as a fast, cheap, legal depressant, and for a few hours, it does the job.
That’s why alcohol is the most common response to that fourth symptom cluster. It isn’t confusion or poor judgment. It’s simply the most accessible tool available.
Opioids and Emotional Numbing
Where alcohol dials down arousal, opioids dial down feeling itself. For someone carrying shame, guilt, or grief with nowhere to go, that offers a different, sometimes more thorough, kind of relief. They just don’t want to feel the hard things anymore.
Many people with trauma histories also first encounter opioids through a legitimate prescription after an injury, sometimes from the very event that caused their trauma.
Stimulants and Dissociation
This gets less attention, but it’s a legitimate concern. Some people with PTSD experience dissociation, a flat, disconnected, far-away state that protects them in the moment but disables them afterward. Stimulants cut through that fog and restore a sense of being present and switched on.
Why It Works Short Term and Fails Long Term
Every one of these approaches does work, but briefly. That’s the tricky part. If self-medication didn’t work at all, nobody would keep doing it.
What breaks down is the math. Tolerance builds, and so the dose climbs. The relief window shrinks. Rebound hits once the substance wears off, and when those feelings return, they tend to come back even stronger. Now the individual is facing two problems: their trauma and their dependence. That second one starts generating its own trauma: things done, things lost, memories that won’t come back.
How Substance Use Makes PTSD Worse
Interrupted Sleep and Nightmares
Alcohol suppresses REM sleep, and REM is where the brain handles much of its emotional processing. Blocking it night after night interferes with the process that would otherwise slowly file the memory away.
Once drinking stops, REM rebounds hard. Nightmares often intensify before they ease up, which is a common reason people return to using.
Avoidance Becomes Chemical
Avoidance is a core PTSD symptom, and it’s also what keeps PTSD alive. Symptoms tend to fade through repeated, safe exposure to reminders that turn out not to be dangerous after all.
A substance is the most efficient avoidance tool there is. It removes the need to be anywhere near the reminder. That means it doesn’t just fail to treat PTSD. It actively shields it.
Withdrawal Mimics Hyperarousal
Withdrawal from alcohol or benzodiazepines brings a racing heart, sweating, tremors, irritability, insomnia, and a sense of looming danger, an almost exact match for hyperarousal symptoms.
Someone in early withdrawal often assumes their PTSD is worsening and that they need the substance to cope. Sometimes that’s accurate. Often it’s withdrawal disguised as PTSD, and it passes on its own.
Why Both Need Addressing
Treating One Alone
Treat the substance use and skip the PTSD, and you’ve stripped away someone’s coping tool while leaving the underlying problem untouched. That’s not a stable outcome.
Treat the PTSD and skip the substance use, and the therapeutic progress gets undermined by sleep, memory, and emotional regulation being chemically disrupted between sessions.
The VA’s position is direct: treating PTSD and substance use together works better for both.
Why Trauma Work Usually Waits for Stabilization
This is where expectations often clash with clinical practice. People show up ready to face the trauma and get told, essentially, not yet.
That’s not avoidance on the clinician’s part. Trauma-focused therapy is intense work, and distress typically rises before it falls. Attempting that with someone still in withdrawal, running on three hours of sleep, with no reliable coping tools, is a reasonable path back to using.
What That Waiting Period Is For
It isn’t wasted time. Stabilization generally means getting safely through acute withdrawal, restoring workable sleep, building substance-free coping skills, and having enough support that a hard therapy session today doesn’t spiral into a crisis by tomorrow.
Some treatment approaches bring trauma work in earlier than others, and practices vary. What stays consistent is that timing reflects a safety judgment, not a stall tactic.
Approaches That Address Both
Trauma-Focused Therapies
Several approaches carry solid evidence for treating PTSD, including cognitive processing therapy, prolonged exposure, and eye movement desensitization and reprocessing. Others, like accelerated resolution therapy, use guided eye movements and have a smaller but growing research base.
For someone choosing a path, the priority isn’t which option ranks highest on paper. It’s which one they’ll actually show up for and finish.
Why You May Not Have to Describe the Trauma Aloud
This is the primary reason that people avoid trauma treatment, and the assumption behind it is very outdated.
Different approaches vary widely in how much verbal recounting they require. Some involve detailed narrative work. Others focus mainly on imagery and the body’s physical response, requiring very little spoken detail about what happened.
If saying it out loud is what’s held you back from getting help, ask about this before ruling treatment out entirely.
What Medication Can and Cannot Do
Medication plays a genuine role in treating PTSD, particularly for sleep, mood, and some arousal symptoms, and separately in treating substance use disorders.
What medication can’t do is process a memory. For many people, it just makes the deeper therapeutic work possible; it’s not a replacement for that work.
What Trauma Treatment Feels Like
For most people, trauma treatment gets harder before it gets easier. Symptoms often spike once treatment begins, which feels disorienting if nobody mentioned it beforehand. But the beautiful thing is that this is finite. Treatment programs finish, and you are better off at the end of the journey. Many trauma-focused programs run for a set number of sessions rather than indefinitely.
And it isn’t about reliving the event over and over until it stops mattering. The goal is changing how the memory is stored and how it affects the body now, not erasing it.
For Families of Someone With PTSD and Addiction
These are a few important things to note for families of those impacted:
- Irritability and emotional distance are symptoms, not a verdict on you. Hyperarousal makes people short-tempered, and numbing makes them feel absent. Neither reflects a choice about the relationship.
- Pushing for the full story rarely helps. Wanting answers is understandable, but being pressed for details is often the hardest thing to sit through.
- Anniversaries matter. Dates, seasons, weather, smells, and news events can all trigger a reaction, and the person often doesn’t connect the dots until later.
- And finally, but equally importantly. You’re allowed to seek your own support. Living alongside this is genuinely difficult, and if you need a hand, reach out.
Frequently Asked Questions
Can PTSD Cause Addiction?
PTSD raises the risk substantially. About 45% of adults with PTSD also struggle with drugs or alcohol, and veterans with a lifetime history of PTSD face roughly two to three times the likelihood of substance problems. Cause is too strong a word for a relationship this tangled, but the connection runs in both directions and is well documented.
Do I Have to Talk About the Trauma?
Not necessarily, and not in every approach. How much verbal detail is required varies a lot between therapies, so ask directly before deciding.
Will Treating PTSD Stop the Cravings?
Often, it reduces them significantly, since a major driver gets addressed. It rarely eliminates cravings on its own, which is why both conditions get treated together rather than just one.
Recovery Month and the People Carrying This
This piece forms part of our Recovery Month series. A large share of people with substance use disorders are managing something underneath it that nobody’s ever asked them about.
They get treated for the visible problem, sometimes more than once, while the invisible one stays unnamed. Then everyone assumes treatment simply didn’t work. This is why visibility and awareness matter this September.
If you are in crisis, call or text 988. Veterans can dial 988 and press 1.
