Explanation | 2 years ago

The side effects of hypnosis

Hypnosis is increasingly used in therapeutic and healthcare settings for purposes including pain management, anxiety reduction and behavioural support. At the same time, it is important to consider possible side effects of hypnosis, even though reported reactions are usually mild and temporary. This article examines hypnosis safety, possible adverse reactions and how professional training supports careful practice.

Content

What is hypnosis?

Hypnosis is commonly described as a state of focused attention with increased responsiveness to suggestion. Relaxation is often used, but it is not essential in every hypnotic procedure. Rather than assuming literal access to a separate subconscious system, contemporary explanations focus on attention, expectation, imagination and the way suggestions can influence experience and behaviour.

Would you first like to discover how hypnosis is taught? Explore our free introductions to hypnosis.

Research into the side effects of hypnosis

Hypnosis is generally considered low risk when it is used appropriately by a suitably trained professional. Reviews of clinical studies report that adverse events are uncommon and usually mild. Reporting methods differ considerably between studies, however, so the absence of a reported adverse event does not always prove that no temporary reaction occurred.

Professional training should cover informed consent, screening, contraindications, professional boundaries and appropriate responses when a participant experiences discomfort.

Possible side effects and temporary reactions

Reported reactions may include:

Temporary dizziness or disorientation: this usually resolves quickly after the session.
Headache: this is reported infrequently and is usually mild.
Emotional discomfort: imagery, memories or emotionally charged material may arise. The practitioner should respond carefully and remain within their professional competence.
Drowsiness or fatigue: some people feel tired after a deeply relaxing session.
Unexpected or distressing memories: hypnotic recall is not automatically accurate. Suggestive questioning can influence memory, so hypnosis should not be presented as a reliable method for establishing historical fact.

Comparison with medication and other interventions

Some individual studies have reported fewer adverse events in hypnosis groups than in medication control groups. For example, one comparison involving hypnosis and zolpidem reported adverse events in the medication group but not in the hypnosis group. This finding is relevant to that particular study, but it does not establish that hypnosis is always safer than every conventional treatment. Risks and benefits must be considered for the specific person, condition and intervention.

Hypnosis in healthcare: childbirth and pain management

Hypnosis is used as a complementary technique in healthcare settings, including pain management and preparation for childbirth. Research has not identified clear evidence of serious harm in these applications when hypnosis is used appropriately, but the quality and strength of evidence vary by outcome. Hypnosis should complement rather than replace necessary medical assessment and treatment.

Healthcare professionals can explore this topic further in our medical hypnosis training for clinicians.

Why follow hypnosis training at HypnoseMentor?

HypnoseMentor offers routes from an introductory experience to professional and specialised training:

Free hypnosis introductions: discover how hypnosis works during a free webinar, lesson or introductory activity.
OMNI Hypnosis and Hypnotherapy Training: intensive professional training with practical demonstrations, supervised exercises and assessment. The OMNI diploma is not a state-recognised professional qualification; registration requirements differ by country and professional association.
Medical hypnosis training: for healthcare professionals who want to use hypnosis and communication techniques within their clinical scope.
Hypnosis specialisation training: further professional development in specific approaches and fields of application.

Conclusion: is hypnosis safe?

Hypnosis is generally considered a low-risk intervention when it is used responsibly, with appropriate consent, screening and professional competence. Mild reactions such as headache, dizziness, fatigue or emotional discomfort may occur. Particular care is required when working with trauma, severe mental health concerns, medical conditions or memory-related material.

Would you like to learn more? Start with our free hypnosis introductions or explore our English hypnosis training courses.

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Frequently asked questions about the side effects of hypnosis

Is hypnosis dangerous?

Hypnosis is generally considered low risk when used appropriately by a suitably trained professional. Temporary reactions such as headache, dizziness, fatigue or emotional discomfort can occur. Screening, informed consent and appropriate referral remain important.

Can everyone be hypnotised?

Responsiveness varies between people and situations. Motivation, expectations, attention, trust and the method used can all influence the experience. A person should never be pressured to participate.

What should I do if I have a negative experience during hypnosis?

Tell the practitioner immediately. The session can be adjusted or stopped. If symptoms persist or involve a medical or mental health concern, contact an appropriately qualified healthcare professional. Before booking, check the practitioner’s training, professional scope, complaints procedure and any relevant registration.

What are the possible benefits of hypnotherapy?

Research suggests that hypnosis may support some people with concerns such as pain, procedural anxiety, stress and certain behavioural goals. Outcomes vary, and hypnosis is not a guaranteed treatment or a replacement for necessary medical or psychological care.