What Is Continuous Traumatic Stress, and Why Isn't It an Official Diagnosis Yet?

It describes something real: living under a threat that hasn't ended. Here's why the science hasn't caught up to a formal name for it, and what that gap means for you.

The Short Answer

If you've read about continuous traumatic stress (CTS) and gone looking for it in a diagnostic manual, you won't find it. It isn't in the DSM-5. It isn't in the ICD-11 either, even though the ICD-11 added several new stress-related categories in its most recent update (Maercker & Brewin, 2024; Hamadeh et al., 2025).

That's not because researchers think the experience isn't real. It's because the existing trauma frameworks, especially PTSD, were built around a single event that has already happened. CTS describes something structurally different: living inside a threat that is still active, or reasonably expected to return. The tools we have weren't designed to measure that, and building new ones properly takes time (Goral et al., 2021; Levin et al., 2023).

If this is your experience, or you're supporting someone whose experience this is, understanding why the label is still catching up matters. It's not a technicality. It affects what kind of help gets offered, and whether that help actually fits.

Key Takeaways

• Continuous traumatic stress describes psychological responses to ongoing, real, or anticipated danger, not a single past event.

• It is not currently recognized as a formal diagnosis in the DSM-5 or ICD-11, largely due to insufficient research evidence at the time those systems were built.

• CTS symptoms cluster differently than PTSD: exhaustion and detachment, rage and betrayal, and fear and helplessness.

• The mechanisms behind CTS, anticipatory anxiety, allostatic load, and emotion dysregulation, are distinct from PTSD's memory-consolidation model.

• Using standard PTSD tools in ongoing-threat situations can actually overestimate certain symptoms, because those tools assume the danger is over.

Why This Gap Exists

Here's something worth naming plainly: it's not unusual for the research to lag behind lived reality. That's frustrating if you're the one living it, and it's worth saying so without softening it.

PTSD's diagnostic criteria require a specific traumatic exposure in the past. That single-event assumption is baked into Criterion A of the diagnosis itself (Goral et al., 2021). But if you're living somewhere with ongoing security threats, or in a violent community where danger could resurface tomorrow, your distress isn't about processing something that already ended. It's shaped by both what happened and what might still happen. The existing criteria simply don't have a slot for that.

When the ICD-11 working group considered adding a dedicated diagnosis for ongoing traumatic stress, they concluded there wasn't yet a strong enough body of research on its core symptoms to justify the addition (Maercker & Brewin, 2024). An attempt to formalize a related construct was rejected on similar grounds, for lack of empirical evidence (Levin et al., 2023).

I want to be honest about what this means and doesn't mean. It doesn't mean CTS isn't real, or that your reactions to ongoing danger are somehow less legitimate than a diagnosed condition. It means the field is still building the evidence base, and in the meantime, people living this experience often get squeezed into frameworks that don't quite fit.

What the Research Actually Shows

Even without formal diagnostic status, researchers have been building tools and evidence steadily.

The Continuous Traumatic Stress Response Scale (CTSR) was developed specifically to fill this gap. It captures three symptom clusters that don't map cleanly onto PTSD: exhaustion and detachment, rage and betrayal, and fear and helplessness (Goral et al., 2021). Confirmatory factor analysis supports these as a coherent, higher-order construct, related to PTSD but genuinely distinct from it.

This distinction has held up in newer research too. A study adapting the CTSR for Ukrainian military personnel found the scale captured a clinical profile that standard PTSD measures missed entirely (Avramchuk et al., 2026). And a network analysis of complex PTSD symptoms among civilians during the Russia-Ukraine war found something telling: emotional numbing and a heightened sense of threat were the most central symptoms, more so than the intrusive memories we usually associate with trauma (Levin et al., 2023). That pattern makes sense once you remember the threat in these cases hasn't actually passed.

There's also a caution worth flagging here. Using standard PTSD tools, like the International Trauma Questionnaire, in ongoing-threat contexts may actually overestimate complex PTSD rates, because those tools assume you can evaluate whether symptoms have persisted after a stressor ended. If the stressor hasn't ended, that evaluation isn't possible yet (Levin et al., 2023). In other words, the tool ends up measuring something it wasn't built to measure.

Research on adolescents in Sub-Saharan Africa exposed to ongoing conflict adds another layer: PTSD symptoms alone don't fully capture what these young people experience. Additional distress markers, like depression and anxiety, need to be considered alongside CTS to get an accurate picture (Rafique et al., 2026).

The Reframe: Why "Adaptive, Not Pathological" Actually Matters

Here's where I think the research offers something genuinely useful, not just for understanding CTS, but for how we talk about it.

A lot of trauma language implicitly treats symptoms as malfunctions to be corrected. Hypervigilance gets framed as something to calm down. Avoidance gets framed as something to overcome. That framing makes sense for PTSD, where the danger has passed and the nervous system needs help catching up to that fact.

But under continuous traumatic stress, avoidance behavior and heightened alertness may be reasonable survival responses, not symptoms of dysfunction (Goral et al., 2021). If the threat is genuinely still present, staying alert is accurate information processing, not a broken alarm system.

I think of this as the difference between a smoke detector going off because of an actual fire versus one malfunctioning with no fire present. PTSD treatment, in many cases, is about recalibrating a detector that's misfiring after the fire is out. CTS is often about supporting someone whose detector is working correctly, because the fire hasn't been put out yet.

That distinction changes the goal of support. You're not trying to convince someone the danger isn't there. You're trying to help them function, rest when possible, and stay connected to others while the danger persists, or while they wait to find out if it will return.

What's Actually Happening in the Body

It helps to understand the mechanics here, because they explain why this doesn't feel like "just stress."

Anticipatory anxiety sits at the center of CTS. Unlike PTSD, where distress often centers on processing a past event, CTS distress is driven by realistic fear of future harm. Near-miss experiences, situations where danger came close but didn't fully materialize, reinforce the accuracy of that fear rather than resolving it (Goral et al., 2021; Truskauskaitė et al., 2025).

Allostatic load builds from there. Each new exposure to threat adds physiological wear-and-tear, gradually depleting the body's coping capacity. This shows up as dysregulation across the HPA axis, the sympathoadrenal system, and immune function (Avramchuk et al., 2026). Over time, this cumulative load contributes to the somatic complaints, sleep problems, and mental exhaustion so many people in ongoing-threat situations describe.

Emotion dysregulation follows a specific pattern under CTS: fluctuation between hyperactivation (feeling flooded, reactive, on edge) and emotional shutdown (numbness, detachment). Network analysis shows this isn't random. It reflects a genuine cycle between confrontation and shutdown states, tied directly to ongoing uncertainty about safety (Levin et al., 2023).

And because physical escape from the threat is often impossible or dangerous, people frequently develop emotional and cognitive avoidance instead, things like cynicism, detachment, or somatization, as alternative ways of coping when literal escape isn't available (Avramchuk et al., 2026).

None of this is a character flaw. It's a coherent physiological and psychological response to circumstances that genuinely warrant it.

What Helps, Even Without a Formal Diagnosis

The lack of a diagnostic code doesn't mean there's nothing useful to do. It means the approach needs to match the actual mechanism, not a borrowed framework.

Cognitive flexibility training shows real promise. Research on cumulative trauma exposure found that flexibility training, the ability to shift and reappraise threat assessments rather than getting stuck in rigid patterns, helped reduce feelings of threat and helplessness following psychological first-aid training (Nizri et al., 2025). This isn't about convincing someone the danger is gone. It's about building the cognitive capacity to accurately distinguish real threat from residual alarm, even while some threat remains.

Assessment needs to include more than PTSD symptoms. Since PTSD tools weren't built for ongoing exposure, a fuller picture requires looking at exhaustion, detachment, anticipatory fear, and mood symptoms like depression and anxiety alongside any trauma-specific measures (Rafique et al., 2026).

Support needs to acknowledge the accuracy of the response. Practically, this looks like validating hypervigilance as reasonable given the circumstances, rather than treating it as something to talk someone out of. It also means recognizing that "recovery" in the traditional sense may not be the right goal while the threat is ongoing. Functioning, connection, and periods of rest become more realistic markers of progress than full symptom resolution.

Physiological load deserves direct attention. Given how much of CTS involves allostatic load and HPA axis dysregulation, supports that address the body directly, rest, nutrition, sleep protection where possible, matter alongside psychological approaches (Avramchuk et al., 2026).

If You're Living This, or Supporting Someone Who Is

Let go of the recovery timeline you've been handed. If the threat hasn't ended, standard trauma recovery milestones don't apply yet. That's not a failure on your part. It's a mismatch between the framework and the reality.

Name the hypervigilance accurately. If you notice yourself staying alert even in calmer moments, consider that this might be accurate threat assessment rather than dysfunction. That reframe alone can reduce the shame that often piles on top of the original stress.

Look for support built for ongoing threat, not single-incident trauma. Where possible, seek out professionals or programs with specific experience in continuous traumatic stress or complex, ongoing exposure, rather than generic trauma resources built around a single past event.

Practice cognitive flexibility deliberately. Small exercises in shifting perspective, noticing when a threat assessment might be outdated or overgeneralized, and gently testing that assessment, may help, based on emerging research (Nizri et al., 2025).

Protect what recovery capacity you can. Sleep, physical safety, moments of genuine rest. These aren't luxuries here. They're direct interventions on the allostatic load your body is carrying.

If you're supporting someone, resist the urge to "fix" their alertness. Offer steadiness and safety instead of trying to talk them out of a response that may be entirely appropriate to their circumstances.

Frequently Asked Questions

Is continuous traumatic stress an official diagnosis? No. Neither the DSM-5 nor the ICD-11 currently recognizes CTS as a formal diagnostic category. Researchers cite insufficient empirical evidence at the time these systems were last updated, though CTS remains an active area of study (Maercker & Brewin, 2024).

How is continuous traumatic stress different from PTSD? PTSD assumes a traumatic event has ended and focuses on processing the past. CTS involves ongoing or anticipated danger, driven by anticipatory anxiety rather than memory processing, with distinct symptom clusters including exhaustion, detachment, rage, and fear (Goral et al., 2021).

Is hypervigilance always a symptom that needs treatment? Not necessarily. Under continuous traumatic stress, heightened alertness can be a reasonable, accurate response to ongoing real danger, not a malfunction. Whether it needs direct intervention depends on whether the threat has genuinely passed (Goral et al., 2021).

Can standard PTSD tests accurately measure continuous traumatic stress? Not reliably. Tools like the International Trauma Questionnaire assume symptoms can be evaluated after a stressor ends, which may overestimate certain symptom rates when the threat is still active and ongoing (Levin et al., 2023).

What actually helps someone experiencing continuous traumatic stress? Cognitive flexibility training, assessments that go beyond PTSD symptoms alone, support that validates the accuracy of hypervigilance, and direct attention to physiological load through rest and safety, have all shown promise in current research (Nizri et al., 2025; Avramchuk et al., 2026).

If no diagnosis exists yet for what you're living through, that's a gap in the research, not a gap in the reality of your experience.

The science is still catching up to something people have survived for generations: living inside danger that doesn't have a clear end date. That gap can feel isolating. But understanding the mechanism, anticipatory anxiety, cumulative physiological load, and the push and pull between shutdown and hyperactivation, can offer something steadier than a diagnostic code ever could: an accurate map of what's actually happening, and permission to stop pathologizing a response that makes complete sense.

The threat doesn't need a diagnosis to be real. And neither does your response to it.

References

Avramchuk, O., Mykolaychuk, M., Zavada, T., Demydiuk, V., Goral, A., & Senyk, O. (2026). Understanding the clinical profile of Continuous Traumatic Stress Responses: insights from the adaptation of the Continuous Traumatic Stress Response Scale (CTSR) in Ukrainian military personnel. European Journal of Psychotraumatology, 17. https://doi.org/10.1080/20008066.2026.2646757

Goral, A., Feder-Bubis, P., Lahad, M., Galea, S., O'Rourke, N., & Aharonson-Daniel, L. (2021). Development and validation of the Continuous Traumatic Stress Response scale (CTSR) among adults exposed to ongoing security threats. PLoS ONE, 16. https://doi.org/10.1371/journal.pone.0251724

Hamadeh, A., El-Khoury, J., Torales, J., Atoui, M., Aggarwal, N., Campbell, M., Lashley, M., De Magalhães Narvaez, J. C., McMahon, A., Ventriglio, A., Alibudbud, R. C., Ramachandran, P., Moura, H., Okasha, T., Tribe, R., Day, G., Javed, A., Persaud, A., & Bhugra, D. (2025). A critical review of the evolution and interrelation of traumatic stress disorders. PLOS Mental Health, 2. https://doi.org/10.1371/journal.pmen.0000385

Levin, Y., Ben-Ezra, M., Hamama-Raz, Y., Maercker, A., Goodwin, R., Leshem, E., & Bachem, R. (2023). The Ukraine-Russia war: A symptoms network of complex posttraumatic stress disorder during continuous traumatic stress. Psychological Trauma: Theory, Research, Practice and Policy. https://doi.org/10.1037/tra0001522

Maercker, A., & Brewin, C. (2024). Controversies in trauma- and stress-related disorders. The British Journal of Psychiatry, 226, 7-9. https://doi.org/10.1192/bjp.2024.147

Nizri, H., Catz, O., Siman-Tov, Y., Farchi, M., & Levy-Gigi, E. (2025). Cognitive Flexibility as a Mechanism of Change: The Relationship Between Cumulative Trauma Exposure and Stress Reactions Before and After Psychological First-Aid Training. Cognitive Therapy and Research, 49, 1123-1131. https://doi.org/10.1007/s10608-025-10605-1

Rafique, M., Van Der Watt, A. V. D., Soloneko, O., Rozmyrska, Y., Seedat, S., & Zasiekina, L. (2026). Posttraumatic stress symptoms and posttraumatic stress disorder in adolescents exposed to continuous traumatic stress in Sub-Saharan Africa: A systematic review and meta-analysis. Cambridge Prisms: Global Mental Health, 13. https://doi.org/10.1017/gmh.2026.10129

Truskauskaitė, I., Kvedaraitė, M., Goral, A., & Daniūnaitė, I. (2025). Living under threat: adolescents' continuous traumatic stress reactions in relation to violence exposure. European Journal of Psychotraumatology, 16. https://doi.org/10.1080/20008066.2025.2481803