Relationships

Toxic Relationships

How to tell an unhealthy pattern from ordinary conflict, why these dynamics are hard to leave, and what research says about recovery.

On this page
  1. Where the Term Comes From
  2. What Separates a Difficult Relationship From an Abusive One
  3. Common Warning Signs
  4. Why These Patterns Develop
  5. Why Leaving Is Harder Than It Looks
  6. Psychological Impact
  7. Toxic Patterns Beyond Romantic Relationships
  8. If You Are Thinking About Leaving
  9. Recovery After Leaving
  10. Frequently asked questions
  11. Sources

A toxic relationship is a relationship in which a recurring pattern of behavior, such as contempt, manipulation, control or disrespect, repeatedly damages one or both people's self-esteem, autonomy and wellbeing. It is a popular, non-clinical term rather than a diagnosis. Some "toxic" patterns are mutual habits that couples can change; others amount to psychological abuse or coercive control, where the priority is safety rather than better communication.

This page explains how researchers tell those situations apart, the patterns that tend to signal trouble, why these relationships are hard to leave, and what recovery usually involves. It is educational information, not an assessment of any particular relationship.

Where the Term Comes From

"Toxic" became popular in self-help writing in the late twentieth century (for example, Susan Forward's book Toxic Parents, 1989) and spread widely through social media. Researchers rarely use it. Instead they study specific, measurable behaviors: psychological aggression (insults, humiliation, threats), coercive control (a pattern of domination and restriction of freedom), physical and sexual violence, and broader features of relationship quality such as hostility, support and repair.

The popular term is useful because it gives people a word for something that feels wrong. Its weakness is that it can be applied to anything from a bad week to serious abuse. Looking at the specific pattern, rather than the label, gives a clearer picture.

What Separates a Difficult Relationship From an Abusive One

All close relationships include conflict. Healthy relationships repair after conflict: partners apologize, reconnect and adjust. Unhealthy ones get stuck in the same damaging cycle. Abusive relationships go further: conflict, fear or affection become tools that one partner uses to gain or keep control over the other.

Sociologist Michael P. Johnson's influential typology distinguishes:

  • Situational couple conflict: both partners contribute to a pattern neither likes. Arguments can be intense, but there is no sustained effort by one person to control or dominate. Couples therapy can help.
  • Coercive controlling violence (sometimes called intimate terrorism): one partner uses a pattern of tactics, including intimidation, isolation, financial control, monitoring and often physical or sexual violence, to control the other. Sociologist Evan Stark's work on coercive control emphasizes that the harm lies in the whole pattern, not only in individual incidents. Traditional couples therapy is generally not recommended here; safety-focused individual support is the starting point.
Healthy, unhealthy and abusive patterns compared
FeatureHealthyUnhealthyAbusive / controlling
ConflictDisagreements happen and get repairedSame fights repeat; little repairConflict used to punish, frighten or dominate
PowerRoughly balanced; decisions sharedImbalanced in some areasOne partner controls money, contacts, movements or decisions
RespectCriticism is about behavior, not characterFrequent criticism, sarcasm or contemptHumiliation, threats, degradation
Outside relationshipsFriends and family encouragedSome jealousy or frictionSystematic isolation from support
SafetyBoth feel safe to disagreeTension but no fearFear of the partner's reaction

"Toxic relationship" can describe anything in the last two columns. The practical question is not the label but the pattern, and whether anyone is afraid.

Common Warning Signs

Domestic-abuse organizations and researchers commonly describe the following patterns as signals of an unhealthy or abusive dynamic:

  • Persistent criticism and contempt, especially attacks on identity ("you always…", "you're too much"). In John Gottman's research on couples, contempt was one of the strongest predictors of later divorce.
  • Gaslighting: a person is repeatedly told that their memory, perception or feelings are wrong, until they stop trusting their own judgment.
  • Isolation: relationships with friends, family or coworkers erode because keeping in contact causes trouble at home.
  • Monitoring: controlling where a partner goes, who they talk to, or how they use their phone and accounts.
  • Financial control: limiting access to money, accounts or the ability to work.
  • Cycles of devaluation and reconciliation, such as intense affection ("love-bombing") followed by harsh withdrawal.
  • Threats and intimidation, including threats involving pets, children, immigration status or exposure of private information.
  • Physical or sexual violence, or pressure that overrides consent.
  • Responsibility reversal: one person ends up apologizing after almost every conflict, regardless of what happened.

A single instance of any of these does not define a relationship. The concern is the pattern: the same dynamic repeating, with the same person losing ground each time. Related dynamics are covered in codependency and manipulation tactics.

Why These Patterns Develop

There is no single cause, and explaining a pattern does not excuse harm. Psychologists point to several contributing factors:

  • Learned relationship models. People who grew up with hostility or control at home may have learned these patterns as normal, though most people with difficult childhoods do not become abusive.
  • Attachment insecurity. Anxious or avoidant attachment styles are linked to jealousy, pursuit–withdrawal cycles and difficulty with repair.
  • Poor conflict and emotion-regulation skills. When stress rises, some couples fall into escalating criticism and defensiveness; see conflict resolution.
  • Entitlement and beliefs about control. Research on coercive control emphasizes attitudes about power and gender roles, not just anger or stress.
  • Stressors. Financial strain, substance misuse and isolation can intensify existing problems.

Why Leaving Is Harder Than It Looks

People outside an abusive relationship sometimes ask why someone does not "just leave." The answer is rarely simple. Well-documented reasons include:

  • Safety. Domestic-abuse researchers and services consistently report that the period around separation can be the most dangerous, which is why planning with specialists matters.
  • Financial dependence. Housing, childcare or health insurance may be tied to staying.
  • Isolation. A long pattern of isolation may have removed the support network that would normally help.
  • Children. Custody, schooling and stability complicate the decision enormously.
  • Trauma bonding. Dutton and Painter (1981) described how a power imbalance combined with intermittent warmth creates strong emotional attachment. This is a known psychological response, not a rational failing.
  • Belief and self-concept. After years of being told "you're the problem," many people come to believe it, which erodes self-esteem.
  • Cultural and religious context. Family, community or faith expectations can strongly discourage separation.
  • Hope. Many people love their partner and genuinely hope the good periods will last.

Recognizing these reasons replaces blame with practical planning. The right first step is often not "leave tonight" but talking to someone who can help plan safely from where the person is now.

Psychological Impact

Research links long exposure to emotional abuse and coercive control with:

  • Anxiety, hypervigilance and trouble sleeping
  • Depression and persistent low self-worth
  • Post-traumatic stress symptoms, including nightmares and intrusive memories (see trauma and PTSD)
  • Difficulty trusting one's own perceptions, a common after-effect of gaslighting
  • Physical health effects associated with chronic stress
  • Difficulty in later relationships, particularly around conflict and closeness

The World Health Organization and the CDC both describe intimate partner violence as a major public health problem with lasting effects on mental and physical health. These effects are not "weakness." They are understandable responses to sustained, uncontrollable stress, and they generally improve with safety, time and appropriate support. A qualified professional can assess whether someone's symptoms meet criteria for a condition such as PTSD.

Toxic Patterns Beyond Romantic Relationships

The same dynamics can appear in friendships, families and workplaces. Examples include a friend who consistently belittles or exploits, a parent who uses guilt and criticism to control an adult child, or a manager who humiliates staff. The power structure differs in each case. Children cannot leave a family, and employees depend on income, so the options for setting limits differ too. See friendship psychology, childhood trauma and workplace bullying.

If You Are Thinking About Leaving

Domestic-abuse services generally recommend:

  • Talking to someone trained: a domestic-violence hotline, a local agency, a therapist experienced with abuse, or a lawyer. Planning with experienced people is generally safer than planning alone.
  • Building a safety plan, including documents, money, a way to communicate that is not monitored, and a destination.
  • Documenting the pattern where it is safe to do so.
  • Expecting attempts at reconnection or pressure during and after leaving, and planning for them.

For relationships that are unhealthy but not abusive, clear limits often help first; see how to set boundaries. Where both partners want change and no one is afraid, couples therapy is an option.

Recovery After Leaving

The period after leaving is its own phase, not a return to "normal." Common elements of recovery include:

  • A period of stabilization (housing, finances, routine) before deeper therapy work is productive.
  • Individual therapy with a clinician experienced in trauma and abusive relationships. Trauma-focused approaches such as trauma-focused CBT and EMDR have research support for PTSD symptoms; other approaches are also used.
  • Support groups, including online groups, with others who have left similar relationships.
  • Rebuilding or replacing the social network that was eroded during the relationship.
  • Time. Adjustment and grief after separation often take longer than people expect, and that is not a sign something is wrong.

The goal of recovery is not to be unaffected by what happened. It is to reach a point where those experiences no longer decide how a person sees themselves, relates to others or makes decisions. A guide to finding support is at find a therapist.

Frequently asked questions

Is "toxic relationship" a clinical term?

No. It is a popular phrase, not a diagnosis or a category in the DSM-5-TR or ICD-11. Psychologists and researchers use more specific terms, such as psychological aggression, coercive control or intimate partner violence, and distinguish these from ordinary relationship distress. The popular term is useful as a starting point, but the specific pattern matters more than the label.

Can a toxic relationship become healthy?

Sometimes. When both partners contribute to a negative pattern, such as harsh criticism and defensiveness, and both want change, couples therapy has reasonable evidence of helping. When one partner uses control, intimidation or violence, change is much less likely and couples therapy is generally not recommended, because the problem is not mutual communication but one person's use of power.

What is trauma bonding?

Trauma bonding is a popular term for the strong emotional attachment that can form when a relationship alternates between harm and warmth. Researchers Dutton and Painter described this pattern in 1981 as traumatic bonding, linking it to power imbalance and intermittent kindness. It helps explain why people can feel deeply attached to someone who hurts them, and why that attachment is not a personal failing.

Can friendships and family relationships be toxic too?

Yes. The same patterns, such as persistent contempt, manipulation, guilt-tripping or ignoring boundaries, can occur between friends, siblings, parents and adult children, or coworkers. The dynamics differ because the ties and power structures differ, but the questions are similar: is there mutual respect, can conflict be repaired, and does one person regularly lose ground?

Where can someone get help with an unhealthy relationship?

Options include domestic-abuse hotlines and local services, which help with safety planning even if someone is not ready to leave; licensed therapists experienced in trauma or relationships; primary care doctors; and trusted friends or family. For relationships without abuse, couples therapy may be appropriate. Anyone in immediate danger should contact local emergency services.

Sources

  1. Johnson, M. P. (2008). A Typology of Domestic Violence: Intimate Terrorism, Violent Resistance, and Situational Couple Violence. Boston: Northeastern University Press.
  2. Stark, E. (2007). Coercive Control: How Men Entrap Women in Personal Life. New York: Oxford University Press.
  3. Dutton, D. G., & Painter, S. L. (1981). Traumatic bonding: The development of emotional attachments in battered women and other relationships of intermittent abuse. Victimology, 6(1–4), 139–155.
  4. Gottman, J. M. (1994). What Predicts Divorce? The Relationship Between Marital Processes and Marital Outcomes. Hillsdale, NJ: Lawrence Erlbaum.
  5. World Health Organization. Violence against women (fact sheet).
  6. Centers for Disease Control and Prevention. About Intimate Partner Violence.

About this page. Written and reviewed by the iPsychology Editorial Team using peer-reviewed research, textbooks and guidance from bodies such as the APA, NIMH, NHS and WHO. Content is educational and is not a substitute for professional advice. Spotted an error? Let us know.