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Hypnosis Evidence

What the research on hypnosis actually shows

Hypnosis for PTSD: What the Evidence Shows

A historically linked application where modern controlled evidence is scarce.

Hypnosis and trauma have been linked since the earliest days of modern psychology. Charcot, Janet and Freud all used hypnosis with trauma patients. But a long history of clinical use is not the same as evidence of effectiveness, and the modern controlled evidence is surprisingly sparse.

The historical connection

Hypnosis was used extensively in military settings during both World Wars for what was then called “shell shock” or “combat neurosis.” The typical approach involved abreaction: using hypnosis to help soldiers relive traumatic events, with the aim of emotional discharge and resolution.

This approach fell out of favor for good reasons:

  • No controlled evidence that abreaction improved outcomes
  • Risk of retraumatization during relived experiences
  • Reinforcement of traumatic memories rather than resolution
  • Concerns about false memory creation, especially with regression techniques

The modern approach to trauma treatment moved toward structured exposure and cognitive processing, with evidence accumulating from controlled trials rather than clinical tradition.

What controlled evidence exists

A systematic review of hypnosis as an adjunct for PTSD found a small number of studies, mostly with significant methodological limitations [4]. The studies varied in:

  • Whether hypnosis was used as a standalone treatment or an adjunct
  • What type of hypnosis was delivered
  • What it was compared against
  • How PTSD was diagnosed and measured

A narrative review noted that hypnosis could theoretically enhance exposure therapy for PTSD, but acknowledged that the evidence base was insufficient to support clinical recommendations [1].

The comparison problem

The evidence for established PTSD treatments is substantial. A Cochrane review identified 70 trials of psychological therapies for PTSD, with strong evidence supporting trauma-focused CBT and EMDR [3]. The NICE guideline recommends these as first-line treatments and does not mention hypnosis [2].

This creates the same challenge seen in Hypnosis for Anxiety: the bar is high, and the question is not whether hypnosis can do something, but whether it adds to treatments that already work well.

The false memory concern

The most serious concern about hypnosis in trauma treatment is the risk of creating false memories. Hypnosis increases confidence in recalled material without necessarily increasing accuracy. In a trauma population, where memory for events may already be fragmented or distorted, this is a particular risk.

Regression techniques, which involve guiding the person back to earlier experiences, are especially problematic. For detailed evidence on this, see False Memories and Hypnosis and Regression and Recovered Memories.

How hypnosis might be used safely

Some researchers have proposed using hypnosis in trauma treatment without regression or memory exploration [1]:

  • Relaxation and stabilization before trauma-focused work
  • Enhancing imaginal exposure during evidence-based therapy
  • Managing dissociative symptoms that interfere with treatment engagement
  • Improving sleep as an adjunct to standard PTSD treatment

These are reasonable ideas, but they remain largely untested in controlled studies specifically for PTSD populations.

Common claims versus evidence

Claim Evidence
Hypnosis resolves trauma by accessing repressed memories Not supported; may create false memories
Hypnotherapy cures PTSD Not supported by controlled evidence
Hypnosis enhances trauma-focused therapy Plausible but not established
Regression hypnosis is needed for trauma Not supported; regression carries risks

What this means in practice

A person with PTSD should know that trauma-focused CBT and EMDR have strong evidence and should be the first-line treatments considered. Hypnosis has not been shown to be effective for PTSD in controlled research. If a practitioner offers hypnosis for PTSD, they should not use regression or memory recovery techniques, and the treatment should be part of an evidence-based framework, not a replacement for it.

For how to assess the design of any trial claiming benefits for a trauma treatment, see What Is a Randomized Controlled Trial?.

When to see a clinician first. PTSD is a treatable condition. See your GP, who can refer you for trauma-focused therapy. In England, you can self-refer to NHS Talking Therapies. If you are in crisis, contact Samaritans on 116 123 (UK), or call or text 988 (US). Do not delay evidence-based treatment to try approaches without established evidence.

Frequently asked questions

Can hypnosis treat PTSD?

There is not enough controlled evidence to recommend hypnosis as a treatment for PTSD. A few small trials have tested it as an adjunct to other therapies, with mixed results. Trauma-focused CBT and EMDR are the recommended first-line treatments.

Is hypnosis safe for people with PTSD?

Hypnosis involving age regression or memory exploration carries a risk of creating false memories, which is a particular concern for trauma populations. Relaxation-focused hypnosis without regression has not been shown to be harmful, but has limited evidence of benefit.

Why was hypnosis used historically for trauma?

Hypnosis was used in both World Wars for treating combat-related psychological conditions, often involving abreaction — reliving traumatic events under hypnosis. This approach was abandoned as evidence accumulated that it could reinforce rather than resolve symptoms.

Can hypnosis help with trauma-related sleep problems?

Sleep difficulties are common in PTSD, and hypnosis has some limited evidence for insomnia in general. But there is no specific evidence for hypnosis targeting trauma-related sleep problems.

Sources and further reading

  1. Lynn et al. — Hypnosis and the treatment of posttraumatic conditions: an evidence-based approach

    International Journal of Clinical and Experimental Hypnosis, 2012;60:363–389. Narrative review of hypnosis for PTSD. DOI: 10.1080/00207144.2012.675295.

  2. National Institute for Health and Care Excellence — Post-traumatic stress disorder (NG116)

    NICE guideline, 2018. Recommends trauma-focused CBT and EMDR; hypnosis not mentioned.

  3. Bisson et al. — Psychological therapies for chronic post-traumatic stress disorder (PTSD) in adults

    Cochrane Database of Systematic Reviews, 2013;12:CD003388. 70 trials of psychological therapies for PTSD. DOI: 10.1002/14651858.CD003388.pub4.

  4. Lopes et al. — Hypnosis as an adjunct treatment in PTSD: a systematic review

    European Journal of Psychotraumatology, 2022;13:2070525. Systematic review of hypnosis adjunct studies. DOI: 10.1080/20008066.2022.2070525.

  5. Lynn, Lilienfeld, Merckelbach, Giesbrecht and van der Kloet — Dissociation and dissociative disorders: challenging conventional wisdom

    Current Directions in Psychological Science, 2012;21:48–53. Review of dissociation including hypnosis-related concerns. DOI: 10.1177/0963721411429457.

Sources checked October 16, 2026. This is an editorial summary, not a systematic review or individual advice.

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