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Educational draft · awaiting clinical reviewUse Rapid for revision, not patient-care decisions. Check current national and local guidance and the BNF or BNFC before acting.

Dialectical behaviour therapy principles

Psychiatry · UK scope · Sources checked 7 Sept 2026 · Clinical review pending

RapidFull
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Assess each suicidal crisis

A history of repeated self-harm does not make a new episode medically minor or its intent predictable.

Action: Assess injury, poisoning, current intent and immediate safety, provide indicated emergency treatment and arrange psychosocial assessment with an agreed aftercare plan.

Synopsis

Recognise the role and limits of comprehensive dialectical behaviour therapy, and relate validation, behavioural analysis and skills practice to safer long-term care.

  • DBT combines acceptance and validation of experience with active work to change behaviours that cause harm or restrict life.
  • A comprehensive programme is a coordinated treatment system; an isolated coping-skills group should not automatically be described as full DBT.
  • NICE CG78 specifically recommends considering comprehensive DBT for women with borderline personality disorder when reducing recurrent self-harm is a priority.
  • For young people with substantial emotional dysregulation and frequent self-harm, NICE NG225 recommends considering DBT adapted for adolescents.
  • Behavioural chain analysis examines vulnerabilities, triggers, links and consequences so that alternative responses can be rehearsed at identifiable points.
  • Clear boundaries and a shared crisis plan should support predictable care and must not become punishment for expressing distress.
  • Medication is not a specific treatment for borderline personality disorder or its associated repeated self-harm; treat comorbid disorders on their own merits.

Key red flags

Escalating suicidal intent, a change in method or inability to remain safe requires fresh assessment and an urgent response even within an established DBT programme.

Investigation priorities

01
Comprehensive diagnostic reviewFirst step

Establish the formulation, comorbidity and appropriate psychological treatment population.

Management branches

Acute episodeProvide assessment and coordinated aftercare

Self-harm, suicidal distress or a marked deterioration occurs during or before psychological treatment.

  1. Treat immediate physical consequences, explore present intent and safety, and involve the appropriate emergency or mental-health service where required.
  2. Use empathic open questions and the existing crisis plan, agreeing achievable steps and support without assuming that a previous formulation explains every new event.
  3. Arrange initial aftercare within forty-eight hours of psychosocial assessment when ongoing safety concerns remain, with clear responsibility for contact and review.
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Sources and review status3 sources · checked 7 Sept 2026 · clinical review pending+
Sources

Sources and review status

National guidance is shown before implementation-dependent detail. Apply principles in context and verify current guidance when a decision affects care. Source check completed 7 Sept 2026; clinical approval remains outstanding.

  • NICE CG78 Borderline personality disorder recommendationsDBT indication, structured care, supervision, crisis response and prescribing limits.
  • NICE NG225 Self-harm recommendationsDBT-A, psychosocial assessment, aftercare and treatment access.
  • NHS Borderline personality disorder treatmentExplanation of dialectical therapy, validation and behavioural change.

Editorial contact: Doctor’s Passport editorial team. Source-check date is separate from clinical approval. Report a content problem · Content changes

Authoring stateRapid draftClinical stateAwaiting reviewJurisdictionUnited Kingdom