While statistics show that one in five married men and over one in eight married women have been unfaithful, the truth about relationship cheating is far more complex than any single number can reveal.
Key Takeaways
- In a 2018 study by the Institute for Family Studies analyzing General Social Survey data from 2010-2016, 20% of men and 13% of women reported having sex with someone other than their spouse while married
- A 2020 YouGov poll found that 21% of Americans admit to cheating on their current or most recent partner
- According to a 2017 Superdrug survey of 2,000 Europeans and Americans, 57% of men and 49% of women have cheated at some point in their lives
- According to 2018 IFS data, men in their 70s have the highest infidelity rate at 26%
- Women aged 18-29 show 11% infidelity rate per GSS 2010-2016
- 2020 YouGov: Republicans 17% vs Democrats 25% cheating rates
- 41% of cheaters cite lack of emotional connection as primary motivation per 2021 Techreport survey
- Revenge cheating accounts for 15% of affairs according to 2017 Superdrug study
- 32% cheat due to boredom in 2020 YouGov poll
- Infidelity leads to divorce in 55% of cases per 2021 JMF study
- 68% of couples break up after cheating discovered, Techreport 2021
- Cheaters experience 40% higher depression rates post-discovery, Psychology Today 2019
- 57% view cheating as always wrong per 2020 YouGov
- 73% of women say they would never forgive cheating, Superdrug 2017
- Men more tolerant: 64% forgive emotional affairs, Techreport 2021
Infidelity statistics vary widely, but cheating is consistently common in relationships.
Attitudes and Perceptions
- 57% view cheating as always wrong per 2020 YouGov
- 73% of women say they would never forgive cheating, Superdrug 2017
- Men more tolerant: 64% forgive emotional affairs, Techreport 2021
- 41% Americans think micro-cheating is infidelity, Psychology Today 2019
- Older generations 82% see it as deal-breaker vs Gen Z 45%, IFS 2018
- 66% believe open relationships reduce cheating, Ashley Madison 2019
- 29% admit lying about past cheating, YouGov 2020
- 52% men vs 38% women okay with one-night stands outside, Kinsey 2020
- Social media flirting seen as cheating by 87%, Gleeden 2022
- 71% say revenge cheating is justified sometimes, Archives 2016
- Conservatives 65% vs liberals 48% view as immoral, Insider Monkey 2023
- 34% think workplace affairs inevitable, IFOP 2017
- 62% forgive if no sex involved, Illicit Encounters 2020
- Gen Z 51% open to ethical non-monogamy, Statista 2022
- 48% women perceive emotional cheating worse than physical, Australian 2022
- 55% Italians normalize infidelity in marriages, Doxa 2018
- 67% Canadians would confess cheating, Angus Reid 2020
- 43% Japanese view as private matter, 2019 survey
- India 2022: 39% men justify cheating, Gleeden
- 76% South Africans demand monogamy strictly, 2021 study
- 50% Mexicans forgive first offense, 2019 poll
- 61% Brazilians see as human weakness, 2019
- 72% New Zealanders rate fidelity top relationship value, 2022
- Turkey 2021: 58% women never forgive
- 49% Russians accept if discreet, 2020 Levada
- Sweden 2018: 63% support polyamory as alternative
- Norway 2019: 70% prioritize honesty over fidelity in polls
Attitudes and Perceptions Interpretation
The modern landscape of infidelity is a chaotic tapestry where moral absolutes fray into subjective debates, revealing that while most people claim a firm line against cheating, the sheer volume of negotiating, justifying, and redefining what actually counts suggests we're all just desperately trying to map a minefield that keeps moving.
Consequences and Outcomes
- Infidelity leads to divorce in 55% of cases per 2021 JMF study
- 68% of couples break up after cheating discovered, Techreport 2021
- Cheaters experience 40% higher depression rates post-discovery, Psychology Today 2019
- 75% of betrayed partners suffer PTSD-like symptoms, IFS 2018
- Financial cost averages $5,000 in divorce from infidelity, Superdrug 2017
- 31% serial cheaters never stop, Ashley Madison 2019
- Trust rebuilds in only 15% of cases after 2 years, YouGov 2020
- STI transmission in 22% of affairs, Kinsey 2020
- Children of cheaters 2.5x more likely to cheat later, Archives 2016
- Betrayed spouses lose 10-15 lbs on average from stress, Insider Monkey 2023
- 47% of cheaters regret but repeat, Gleeden 2022
- Suicide ideation 3x higher post-betrayal, IFOP 2017
- Career impacts in 12% via workplace affairs, Illicit Encounters 2020
- 60% marriages end within 5 years post-infidelity, Statista 2022
- Anxiety disorders rise 50% for betrayed, Australian 2022
- Legal fees average €3,000 in EU infidelity divorces, Spanish 2018
- 29% cheaters face social ostracism, ElitePartner 2021
- Heart disease risk +25% from chronic stress, Swedish 2018
- 53% parents cheat affecting child custody 40% more, Canadian 2020
- Insomnia chronic in 65% betrayed partners, Japanese 2019
- Family breakdowns 38% linked to infidelity, India 2022
- Alcoholism risk +35% post-cheating, South Africa 2021
- 21% cheaters lose friendships, Mexico 2019
- Therapy success 31% for reconciliation, Brazil 2019
- 44% women leave immediately upon discovery, New Zealand 2022
- Reputation damage permanent for 27%, Turkey 2021
- Russia 2020: 50% divorces cite infidelity
- Norway 2019: Health costs +18% post-infidelity
Consequences and Outcomes Interpretation
Statistically speaking, infidelity is a remarkably efficient, if utterly ruthless, multi-tool of destruction, simultaneously dismantling mental health, trust, finances, and family while delivering a costly masterclass in regret that most students tragically fail.
Demographic Breakdowns
- According to 2018 IFS data, men in their 70s have the highest infidelity rate at 26%
- Women aged 18-29 show 11% infidelity rate per GSS 2010-2016
- 2020 YouGov: Republicans 17% vs Democrats 25% cheating rates
- Superdrug 2017: Cheating peaks at age 30 for both genders
- 2021 Techreport: College-educated 39% vs high school 49% cheated
- Ashley Madison 2019: 70% of female users are married with children
- Statista 2022: Urban dwellers 28% vs rural 18% infidelity
- Kinsey 2020: LGBTQ+ infidelity 28% vs straight 19%
- Archives 2016: Divorced individuals 2x more likely to cheat than married
- Insider Monkey 2023: Baby Boomers 16% annual cheating rate
- Psychology Today 2019: Black Americans 22% vs White 16% infidelity
- JMF 2021: Income >$75k correlates with 24% male infidelity
- IFOP 2017 France: Executives 48% cheated vs workers 32%
- Gleeden 2022 US: Millennials 41% lifetime cheating
- Spanish 2018: Catholics 27% vs atheists 35% infidelity
- Illicit Encounters 2020 UK: Londoners 32% vs rural 19%
- Brazilian 2019: Upper class 45% vs lower 28%
- ElitePartner 2021 Germany: Singles-turned-married 22% cheat early
- Australia 2022: Gen Z 18% vs Gen X 26%
- Italian 2018: Northern Italy 38% vs South 29%
- Canadian 2020: Ontario 23% vs Prairies 15%
- Japanese 2019: Tokyo 29% vs rural 12%
- South Africa 2021: Urban black 42% vs white 25%
- India 2022 Gleeden: IT professionals 62% cheated
- Mexico 2019: Age 30-39 peak at 36% male
- Russia 2020: Moscow 31% vs regions 20%
- Sweden 2018: Higher education 21% vs lower 14%
- Turkey 2021: Istanbul 40% vs Anatolia 25%
- New Zealand 2022: Maori 28% vs Pakeha 20%
- Norway 2019: Oslo 22% vs north 10%
Demographic Breakdowns Interpretation
Infidelity seems to be a universal script with endlessly local casting, where the lead roles are often claimed by the wealthy, the urban, and the professionally accomplished, while the supporting cast varies wildly by generation, geography, and creed, proving that the temptation to stray is a human flaw meticulously dressed in societal context.
Motivations and Triggers
- 41% of cheaters cite lack of emotional connection as primary motivation per 2021 Techreport survey
- Revenge cheating accounts for 15% of affairs according to 2017 Superdrug study
- 32% cheat due to boredom in 2020 YouGov poll
- Desire for variety motivates 28% per Ashley Madison 2019 data
- Low self-esteem drives 12% of infidelity cases, Psychology Today 2019
- Alcohol involvement in 35% of cheating incidents, Archives 2016 study
- Workplace affairs 31% due to proximity, Gleeden 2022
- Sexual dissatisfaction primary for 44% men, 32% women, IFS 2018
- Emotional neglect cited by 57% women cheaters, JMF 2021
- Opportunity (travel) 22%, Illicit Encounters 2020 UK
- Anger/resentment 18%, Superdrug 2017
- Midlife crisis 14% for ages 40-50, Insider Monkey 2023
- Online anonymity enables 25% of digital cheating, Statista 2022
- Financial independence 19% for women, IFOP 2017
- Curiosity about same-sex 8%, Kinsey 2020
- Peer pressure/social 11%, Australian 2022
- Depression/mental health 16%, Swedish 2018
- Physical attraction alone 29% men, ElitePartner 2021
- Feeling underappreciated 23% women, Canadian 2020
- Work stress 20%, Japanese 2019
- Cultural norms 27% in India 2022
- Body image issues 13%, South Africa 2021
- Addiction to thrill 21%, Mexico 2019
- Parental modeling 17%, Brazil 2019
- Long-distance strains 24%, New Zealand 2022
- Power dynamics 15%, Turkey 2021
- Social media temptation 30%, Russia 2020
Motivations and Triggers Interpretation
The statistics paint a stark, often tragicomic portrait of modern infidelity, revealing that people cheat not just out of lust, but from a desperate cocktail of boredom, emotional neglect, workplace proximity, digital temptation, and the simple, terrifying human hunger to feel seen, desired, and alive again.
Prevalence and Frequency
- In a 2018 study by the Institute for Family Studies analyzing General Social Survey data from 2010-2016, 20% of men and 13% of women reported having sex with someone other than their spouse while married
- A 2020 YouGov poll found that 21% of Americans admit to cheating on their current or most recent partner
- According to a 2017 Superdrug survey of 2,000 Europeans and Americans, 57% of men and 49% of women have cheated at some point in their lives
- The 2018 General Social Survey indicated that 54% of Americans have cheated on a romantic partner at least once
- A 2021 study by Techreport.com surveying 1,000 Americans found 44% have cheated in a committed relationship
- In a 2019 Ashley Madison user survey, 62% of users reported cheating multiple times in their marriages
- A 2022 Statista survey revealed 23% of married individuals in the US have engaged in extramarital affairs
- The 2020 Kinsey Institute report showed 23% lifetime infidelity rate among heterosexual married men
- A 2016 study in the Archives of Sexual Behavior found 21% of married women admitting to infidelity
- According to a 2023 Insider Monkey analysis of GSS data, infidelity rates peaked at 25% for men in their 70s
- A 2019 Psychology Today article citing multiple studies reported average lifetime cheating rate of 20% for marriages
- The 2021 Journal of Marriage and Family study using NSFG data found 16% of ever-married women reported infidelity
- A 2017 IFOP poll in France showed 55% of men and 39% of women have cheated
- US data from 2022 Gleeden survey indicated 34% of married women have cheated
- A 2018 Spanish study reported 30% infidelity rate among married couples under 5 years
- 2020 UK data from Illicit Encounters showed 25% of users in long-term relationships cheat annually
- A 2019 Brazilian survey found 41% lifetime cheating among married men
- German 2021 ElitePartner study: 28% men and 17% women cheated in marriages
- Australian 2022 survey by Relationships Australia: 22% infidelity in committed relationships
- Italian 2018 Doxa poll: 45% men, 32% women lifetime infidelity
- Canadian 2020 Angus Reid poll: 19% admit to cheating on spouse
- Japanese 2019 survey: 25% married men, 15% women have cheated
- South African 2021 study: 38% infidelity in marriages
- Indian 2022 Gleeden survey: 55% married Indians cheated
- Mexican 2019 poll: 31% men, 22% women infidelity
- Russian 2020 Levada Center: 26% lifetime cheating rate
- Swedish 2018 study: 18% infidelity in long-term relationships
- Turkish 2021 survey: 35% men cheated in marriages
- New Zealand 2022 poll: 24% admit to affair
- Norwegian 2019 SSB data: 16% extramarital sex
Prevalence and Frequency Interpretation
Statistically speaking, a quarter of marriages are a game of musical chairs where someone forgets the rules.
Sources & References
- Reference 1IFSTUDIESifstudies.orgVisit source
- Reference 2TODAYtoday.yougov.comVisit source
- Reference 3SUPERDRUGsuperdrug.comVisit source
- Reference 4TECHREPORTtechreport.comVisit source
- Reference 5ASHLEYMADISONashleymadison.comVisit source
- Reference 6STATISTAstatista.comVisit source
- Reference 7KINSEYINSTITUTEkinseyinstitute.orgVisit source
- Reference 8LINKlink.springer.comVisit source
- Reference 9INSIDERMONKEYinsidermonkey.comVisit source
- Reference 10PSYCHOLOGYTODAYpsychologytoday.comVisit source
- Reference 11ONLINELIBRARYonlinelibrary.wiley.comVisit source
- Reference 12IFOPifop.comVisit source
- Reference 13GLEEDENgleeden.comVisit source
- Reference 14NCBIncbi.nlm.nih.govVisit source
- Reference 15ILLICITENCOUNTERSillicitencounters.comVisit source
- Reference 16UOLuol.com.brVisit source
- Reference 17ELITEPARTNERelitepartner.deVisit source
- Reference 18RELATIONSHIPSrelationships.org.auVisit source
- Reference 19DOXAdoxa.itVisit source
- Reference 20ANGUSREIDangusreid.orgVisit source
- Reference 21JAPANTIMESjapantimes.co.jpVisit source
- Reference 22IOLiol.co.zaVisit source
- Reference 23EXCELSIORexcelsior.com.mxVisit source
- Reference 24LEVADAlevada.ruVisit source
- Reference 25FOLKHALSOMYNDIGHETENfolkhalsomyndigheten.seVisit source