Stockholm Syndrome Explained: Trauma, Survival and the Evidence

Stockholm syndrome is a widely used label for situations in which a captive or someone subjected to coercion appears to empathize with, cooperate with or become attached to the person controlling them. Yet Stockholm syndrome is not a formally recognized standalone psychiatric diagnosis in DSM-5-TR, and researchers have not established validated diagnostic criteria. What looks like affection or loyalty may sometimes be a way to reduce danger and survive, rather than proof that a person loves or endorses their abuser.

This guide revisits the 1973 Stockholm hostage crisis, explains why the label remains controversial, distinguishes it from trauma bonding and coercive control, and offers practical, safety-focused guidance. It draws on original research and specialist resources available through November 2026. The key distinction is between observed behavior under threat and unverified claims about the survivor’s psychological state. See the 2008 evidence review and Cleveland Clinic clinical overview.

What is Stockholm syndrome?

The expression was originally used to describe apparent sympathy or cooperation displayed by certain hostages toward captors. Over time it was extended to cases involving domestic abuse, trafficking and coercive relationships. But these settings differ in duration, power, available choices and relationships. It is misleading to assume that a single mechanism explains every person’s response.

A systematic review published in Acta Psychiatrica Scandinavica identified 12 relevant publications, most based on individual cases or case reporting. It found no validated diagnostic criteria, inconsistent use of the label and a very small scientific evidence base. This does not deny that people can show complex attachment or survival responses. It means the popular syndrome label has not been established as a distinct medical disorder. Read the original 2008 review.

Where did the name come from? The 1973 Stockholm bank siege

On August 23, 1973, an armed robber took four people hostage at a Stockholm bank, triggering a six-day confrontation. After the crisis, media and police attention centered on the hostages’ statements and actions toward the perpetrators. Psychiatrist Nils Bejerot used an explanation that became known as Stockholm syndrome.

The historical account remains disputed. Former hostage Kristin Enmark has rejected the idea that her behavior demonstrated romantic affection or a mental disorder. She has explained her choices in terms of self-preservation and fear of how the police might intervene. Her perspective matters: outsiders cannot infer a hostage’s feelings with certainty merely from behavior during a life-threatening emergency. ABC News reporting with Enmark’s account.

Is Stockholm syndrome an official mental-health diagnosis?

No. It is not listed as an independent disorder in DSM-5-TR. There is also no standardized, clinically validated test that can establish that someone “has Stockholm syndrome.” A qualified clinician may instead assess the effects of trauma, such as post-traumatic stress, anxiety, depression or sleep disruption when relevant. Those are distinct clinical issues and should not be assumed from a survivor’s apparent cooperation with an abuser. Cleveland Clinic’s medical review.

Why might someone appear sympathetic to a captor or abuser?

Behavior under threat is shaped by context. Someone who has little control over their safety may try to calm the person who can harm them. They may focus on moments when violence is withheld or when the abuser behaves kindly. Isolation, threats and restricted access to money or communication can also narrow realistic options. None of these behaviors, by itself, proves consent, affection or agreement with the abuse.

• Power imbalance: One person controls resources, movement, contact or immediate safety.
• Threat and unpredictability: De-escalation becomes a way to reduce imminent danger.
• Isolation and dependence: Loss of alternatives affects decisions and observable behavior.
• Intermittent kindness: Episodes of care may coexist with threats and can complicate attachment.
• Outside misinterpretation: Apparent cooperation may be a safety calculation, not free agreement.

A 2023 article, co-authored by survivor Jaycee Dugard, proposed the term appeasement for some threat-driven survival behaviors. It argues that calming an aggressor should not automatically be interpreted as affection for that person. This is a proposed conceptual framework, not a newly validated diagnosis or a definitive neuroscientific account of every case. Bailey, Dugard and colleagues (2023).

Stockholm syndrome vs. trauma bonding vs. coercive control

The US Department of Justice describes domestic violence as a pattern of abusive acts or threats intended to gain power or control. Such acts may be psychological, sexual, economic, technological or physical. Looking at the abusive person’s behavior and the survivor’s safety often provides more useful information than applying a disputed label to the survivor.

What does more recent research actually show?

2024 meta-analysis: coercive control and mental-health outcomes

Researchers screened 68 studies on coercive control and included data from 45 in meta-analyses. They reported moderate associations with symptoms of PTSD and depression. These are associations within the studies examined, not proof that coercive control causes an identical outcome in every person or that Stockholm syndrome is a validated diagnosis. Lohmann and colleagues (2024).

2025 systematic review: what survivors say about coercion

A qualitative systematic review published in the Journal of Family Violence synthesized 31 studies of women’s experiences of coercive control. Themes included loss of freedom to make choices, ongoing fear, unpredictability and effects after separation. The findings help explain why remaining in an abusive relationship should not be framed as a simple preference. This research addresses coercive control, not the prevalence of Stockholm syndrome. Choudhury and colleagues (2025).

2026 research: how attachment can be used as a means of control

A qualitative paper published in the 2026 volume of Violence Against Women drew on interviews with 18 women who reported repeated abuse and attachment to perpetrators. It described grooming, manipulation and alternating cruelty with care as ways some abusers maintained control. Because the study used a small, selected group and qualitative interviews, it cannot establish how common this pattern is in the general population. Lesiak and Gelsthorpe (2026).

Can someone genuinely love a person who abuses them?

People can experience mixed or enduring emotions in harmful relationships, especially where children, finances, social ties, shared history and genuine affection are involved. But having those feelings does not mean the abuse is acceptable, and it does not establish a psychiatric diagnosis. Likewise, staying or returning does not establish that a person enjoys mistreatment. The practical question is whether the relationship involves coercion, fear or harm and what support is needed.

External observers should avoid asking why someone does not “just leave.” Separation may increase risk in some situations, and barriers may include threats, children, housing, money and surveillance. The US Office on Women’s Health explains why careful safety planning matters.

Are there recognizable symptoms?

There is no official diagnostic checklist for Stockholm syndrome. Some people subjected to captivity or abuse may experience contradictory emotions, fear, anxiety, guilt, distressing memories, insomnia or difficulty concentrating. These are nonspecific experiences that require attention to the person’s situation and may warrant trauma-informed assessment if persistent or impairing. They are not a do-it-yourself test for a disputed syndrome.

How to seek help safely when control or abuse is present

1. Consider immediate danger: If violence is imminent, move to a safe place and contact appropriate local emergency services.
2. Speak through a safe channel: Reach out to someone trustworthy without using a device the abusive person monitors.
3. Make a realistic safety plan: Consider safe contacts, documents, vital medication and a place to go, only where preparing these items does not increase risk.
4. Seek specialist support: Domestic-abuse services and trauma-informed clinicians can help assess options without pressuring a dangerous immediate decision.
5. Protect your digital privacy: Use a secure device or network if you think your activity, messages or location are being monitored.

The NHS guidance and US Office on Women’s Health emphasize listening without blame and planning around personal safety. Resources and emergency numbers vary by country, so readers should use services available in their own location rather than assume that a hotline for another country will work locally.

How to support someone you care about

Listen without judgement, respect their privacy and ask what help they want. Offer to accompany them to professional services or help them find safe, confidential support. Avoid confrontations with the perpetrator that the survivor has not requested or that could increase danger. Do not post or share private allegations and identifying details online. The goal is to expand the person’s safety and choices, not to win an argument over a syndrome label.

Frequently asked questions

Is Stockholm syndrome real or a myth?

Certain attachment or appeasement responses in captivity are real experiences, but the label “Stockholm syndrome” lacks validated diagnostic criteria and a strong evidence base as a distinct disorder. It is best treated as a contested descriptive term.

Can Stockholm syndrome happen in romantic relationships?

Patterns such as coercive control and trauma bonding can occur in abusive relationships. However, no one should assume that staying with an abusive partner means a person has Stockholm syndrome. The person’s safety and the abusive behavior matter more than assigning a label.

Does refusing help prove loyalty to an abuser?

No. Refusing or delaying help can reflect fear of retaliation, lack of resources, privacy concerns, concern for children or worries about an unsafe intervention. It does not reveal a person’s internal emotional state.

Is there a medication that treats Stockholm syndrome?

There is no medication specific to Stockholm syndrome as a standalone diagnosis. Clinicians may treat identifiable symptoms or related disorders, and appropriate counseling may support recovery after threatening or abusive experiences.

How long does recovery take?

Recovery is individual. Safer circumstances, supportive relationships and qualified care may help, but no fixed timeline or guaranteed outcome applies to all survivors.

Is there a reliable online Stockholm syndrome test?

No validated standalone diagnostic questionnaire establishes this label. Online quizzes cannot assess immediate danger, abusive control or a person’s mental-health needs adequately.

Key takeaways

Stockholm syndrome is a popular but clinically disputed label. Apparent emotional ties to a captor or abuser may sometimes reflect survival strategies, attachment shaped by coercion or complex circumstances rather than informed consent or love. Recent research on coercive control offers more specific insights, and safety-focused, nonjudgmental support is more useful than diagnosing survivors from their behavior.

Primary research and trustworthy resources

• Namnyak et al. (2008), Stockholm syndrome evidence review — PubMed
• Bailey, Dugard et al. (2023), Appeasement as a survival response — European Journal of Psychotraumatology
• Feinberg & Zalsman (2024), hostage survival behaviors — PubMed
• Lohmann et al. (2024), coercive control meta-analysis
• Choudhury et al. (2025), qualitative systematic review of coercive control
• Lesiak & Gelsthorpe (2026), attachment and repeat abuse
• Cleveland Clinic, Stockholm syndrome overview
• NHS, getting help for domestic violence and abuse
• US Office on Women’s Health, leaving an abusive relationship