Couples & Relationship Distress
Not a mental disorder; Z codes in DSM-5-TR (for example Z63.0, relationship distress with spouse or intimate partner)
Communication breakdown, conflict patterns, emotional disconnection, infidelity, and attachment injuries. EFT, Gottman Method, and IBCT have strongest evidence. Relationship distress is a major driver of individual mental health problems.
Prevalence: About 40% of first marriages are currently projected to end in divorce; the familiar '50%' is a late-1970s extrapolation that US divorce rates, falling since their 1980 peak, never reached. Relationship distress is far more common than divorce and is a leading reason couples seek therapy
Clinical Picture
Couples therapy is a distinct clinical domain that requires specific training beyond individual therapy skills. The most common presenting issues (communication breakdown, conflict escalation, emotional disconnection, infidelity, sexual difficulties) are surface manifestations of deeper patterns in how partners regulate emotion together and apart. The two dominant evidence-based approaches, Emotionally Focused Therapy (EFT) and Gottman Method, rest on different foundations: EFT on attachment theory (disconnection as the core problem), Gottman on behavioral observation research (the 'Four Horsemen' of criticism, contempt, defensiveness, and stonewalling).
Treatment Considerations
Screen each partner separately for intimate partner violence before beginning conjoint work, and keep screening. Where there is coercive control or fear of a partner, joint sessions can raise risk rather than reduce it, because everything disclosed in the room goes home with both people afterward. That assessment gates everything below it. EFT has the strongest evidence base for couples therapy and is particularly effective for emotional disconnection and attachment injuries. Gottman Method provides psychoeducation and skills-based intervention that many couples find immediately practical. Imago Therapy focuses specifically on the connection between partner selection and childhood wounds. PACT integrates neurobiology and attachment. For couples dealing with infidelity, specific protocols exist within EFT and Gottman frameworks. When one or both partners have individual pathology (trauma, addiction, personality issues), individual therapy often needs to run concurrently.
17 Therapeutic Approaches
Sorted by evidence tier: guideline-recommended first, then RCT-supported, then emerging/limited evidence.
Related Clinical Vignettes
Sources & References
Prevalence data from NIMH, WHO, and DSM-5-TR field trial publications. Evidence tiers reflect guideline status (APA, NICE, VA/DoD, WHO) and meta-analytic findings as of early 2025. Individual modality citations are listed on each modality page. Full bibliography available on the Sources page.