It’s 10:50 pm on a Sunday night, and you’ve got a big presentation tomorrow. You’re finally horizontal, and a hand lands on your hip, the one that asks a particular question. You run the math in the dark. Say no, and there’s the sigh, the turned back, the cool weather at breakfast, a micro stonewall. Say yes, and it’s over in 17 minutes and you’ve bought a week of peace. So you say yes. You make the right sounds and go along with it, and stare at the ceiling, remembering the school lunches that still have to be packed.
Afterward you feel a little farther from your partner, and a lot farther from yourself.
Women call this mercy sex. I’ve heard the phrase in my office, or maybe I called it that when I was in my 30s and my libido was gone. Mainly I hear about the idea of it as sex they have to keep the peace, as part of their marital arrangement. Too often, the woman tells me she is to blame.
If that landed a bit too close to home, you’re not alone. In a study of nearly 1,500 adults in committed relationships, 65% of the women said they had gone along with sex they didn’t want with their current or most recent partner. About two in five of those women said it brought nothing good, only hurt to themselves or their relationship [1].
So, if it’s self abandoning to have mercy sex and about 40% of the time it doesn’t help the relationship and may harm it, why are we having so much of it?
Quick editor’s note: Low libido isn’t her fault. After thirty years of these conversations, I’ve come to believe something further: a woman’s vanished desire is rarely only about sex. Often it’s a more honest part of her, stating that something in her life has stopped feeling alive. It can be an awakening.
Mercy sex is sex you have to prevent something: your partner’s hurt, a fight, the guilt, the sense that you’re failing at love. Researchers call these avoidance goals [2].
It’s one of the oldest bargains women make for love, a little of your body’s truth traded for a week of calm, so ordinary you stop noticing the trade. Trauma clinicians have a name for the reflex underneath: the fawn response, calming a threat by pleasing it [3]. Your partner may be no threat at all. A nervous system trained for decades to keep the peace can file the sigh in the dark under danger anyway, and it answers the way it learned to, with a yes.
Mercy sex can look identical to something healthier. Many women, especially in long relationships and after 35, start sex from neutral place, and say yes because they want closeness, and feel desire arrive maybe ten minutes in. That’s responsive desire, and it’s completely normal female physiology [4]. The difference lives in the reason. A yes that reaches for connection opens a door. A yes that ducks the fallout closes one, every time, particularly in her biology.
Photo from age 30, when I was a chief resident at UCSF Obstetrics and Gynecology.
When researchers followed couples day by day, the days people had sex to avoid disappointing a partner brought lower desire and satisfaction, for both of them. Four months later, the partners of people who’d had more of this kind of sex reported weaker relationships and less satisfying sex lives [2]. Your partner can feel the difference between being wanted and being managed, even when neither of you has words for it.
When sex also hurts, the stakes climb. Among women with pain at penetration, those who had sex mostly to avoid the fallout reported lower sexual and relationship satisfaction [5]. And pain is common after 40. More than half of postmenopausal women live with genitourinary syndrome of menopause, the dryness, burning and thinning that follow estrogen loss [6]. Unlike hot flashes, it doesn’t fade with time [7]. In a US survey of more than 3,000 symptomatic women, only about half had ever told a clinician, and roughly one in ten used a prescription vaginal therapy [8].
Here’s what thirty years of listening has taught me. Every encounter you endure teaches your nervous system that sex is a debt, and the body keeps meticulous books. Desire gets paid down, one mercy at a time, until the account is empty and someone in a white coat writes hypoactive sexual desire disorder in your chart. Hypoactive. As though the trouble all along were that you weren’t trying hard enough.
When desire differs in a couple, the label lands on whoever wants less. She gets the workup, the testosterone conversation, the referral. We have FDA-approved drugs for low desire in women and still no standard workup for the relationship she’s living in.
Desire lives in a relationship as much as in a body. Married women asked why their passion waned pointed at the marriage itself: a relationship hardened into an institution, too much familiarity, roles drained of anything erotic [9]. Women who carry more of the household load report lower desire, in part because the partner starts to feel like a dependent, one more person to look after [10]. It’s hard to want the person whose socks you’re still picking up.
Then there’s the encounter itself. During partnered sex, lesbian women reach orgasm 86 percent of the time. Heterosexual women, 65 percent [11]. Same anatomy, different menu. When sex has been built around someone else’s arc for years, a fading appetite is a smart nervous system making an accurate prediction.
None of this makes your partner the villain. Most partners were never handed an accurate map either. Many feel rejected, and rejection makes them reach more often, which makes you brace harder. That loop belongs to the two of you. So does the way out.
• Mercy sex is sex to avoid fallout. In one large study, most partnered women had had it.
• It lowers desire and satisfaction for both partners, and the cost compounds over time.
• Low desire is usually diagnosed in her, though it’s built in the relationship: the load, the roles, the orgasm gap, untreated pain.
• Her missing desire may be pointing at something bigger than sex: a life that has stopped feeling alive.
When a patient tells me her desire is gone, I’ve learned to ask a second question. When did you last feel wildly, physically alive, about anything at all? The first few times, I felt like a weirdo asking it. I blushed, she blushed, and we both stared hard at the blood pressure cuff. Once I got over myself and stopped blushing, so did my patients. Amazing how that happens. Now the question lands, and the silence after it is usually longer than the one after the first.
Desire for a partner is one expression of a much larger current. Audre Lorde called it the erotic, and she meant something far bigger than sex: the deep, embodied yes a woman feels when she brings her whole self to anything, from writing a poem to building a bookcase [12]. Esther Perel, after years with people who strayed, found many were searching for a lost sense of their own aliveness, more than for a new body [13].
Your physiology makes the same argument. A nervous system that’s been on duty for years, scanning for the next need, the next mood to manage, the next small emergency, has little bandwidth left for pleasure of any kind. Desire goes first because it’s the least essential thing for getting through the day. It may also be the most accurate reporter you have.
So low libido can be a symptom with a much larger chart. It may be telling you that your life has narrowed to function: the lunches, the inbox, the care of everyone but you. Then the question is bigger than how to want sex again. It’s how to want your life again.
That’s the invitation inside the diagnosis: a new erotic life that begins outside the bedroom, belongs to you first, and is shared by choice. The ocean on your skin. Music loud enough to move your hips. Your own hands, with no one to perform for. Work that makes your pulse rise. When aliveness returns to a life, desire tends to follow it home.
• Say it out loud. In daylight, with nothing requested: “Sometimes I say yes so we won’t fight. I don’t want to do that anymore. I want us to want each other.”
• Call a pause. Take sex off the table for two or three weeks. Lie skin to skin with no agenda. Pressure is a brake, and removing it lets the body stop bracing.
• Start with your own aliveness. Ask what made you feel alive at fifteen or twenty-five, and put one of those things back on your calendar this week, for no one but you.
• Change the question. Trade “Why don’t you want to?” for “What would make you want to?” Then listen.
• Retrain your attention. In a randomized trial of women with low desire, eight weeks of group mindfulness training improved desire and eased distress, and so did supportive sex education [14].
• Treat the pain. If sex hurts, nothing else will work until it stops. Ask your clinician about vaginal estrogen or vaginal DHEA, by name [15].
• Get help as a pair. Couples and sex therapy are part of the standard of care for low desire, and they belong in the plan before any pill [16].
If you’ve been having mercy sex, you’ve been carrying a couple’s problem alone, usually, for the sake of peace. That can sometimes be an act of love, but it’s also a weight nobody should carry alone.
Your desire has been protecting you. It learned that yes would cost something, and it did the math the same way you did, in the dark. When the cost changes, the math changes. I’ve watched it happen for women in their 40s, 50s and 60s, in marriages of twenty and thirty years, and in the second chapters after those marriages ended. Your desire belongs to your own life force, and it’s been waiting, with more patience than anyone gave it credit for, for a life worth wanting.
And if your partner is reading over your shoulder: her no has been information. It’s been telling both of you, for a long time, exactly what needs to change.
If this is your story, you’re in the majority, and in very good company. Welcome to our truth-telling community. Send this to the woman you suspect is living it too. Tonight she may be lying in the dark, running the same math, wishing it were different.
Let us know if you have experienced mercy sex, and how it was similar or different from what I am describing from my 30s and 40s.
xo, Dr. Sara
Notes
[1] Marianne Himanen and Annika Gunst, “Sexual Compliance in Finnish Committed Relationships: Sexual Self-Control, Relationship Power, and Experienced Consequences,” Journal of Sex Research (2023). https://doi.org/10.1080/00224499.2023.2246965
[2] Amy Muise, Emily A. Impett and Serge Desmarais, “Getting It On Versus Getting It Over With: Sexual Motivation, Desire, and Satisfaction in Intimate Bonds,” Personality and Social Psychology Bulletin 39, no. 10 (2013): 1320-32.
[3] Pete Walker, Complex PTSD: From Surviving to Thriving (Lafayette, CA: Azure Coyote, 2013).
[4] Rosemary Basson, “The Female Sexual Response: A Different Model,” Journal of Sex & Marital Therapy 26, no. 1 (2000): 51-65.
[5] Natalie O. Rosen et al., “Approach and Avoidance Sexual Goals in Couples with Provoked Vestibulodynia: Associations with Sexual, Relational, and Psychological Well-Being,” Journal of Sexual Medicine 12, no. 8 (2015): 1781-90.
[6] Nik Hazlina Nik Hussain et al., “Prevalence of Psychosomatic and Genitourinary Syndrome Among Menopausal Women: A Systematic Review and Meta-Analysis,” Frontiers in Medicine 9 (2022): 848202.
[7] Nikoletta Mili et al., “Genitourinary Syndrome of Menopause: A Systematic Review on Prevalence and Treatment,” Menopause 28, no. 6 (2021): 706-16.
[8] Sheryl A. Kingsberg et al., “Vulvar and Vaginal Atrophy in Postmenopausal Women: Findings from the REVIVE (REal Women’s VIews of Treatment Options for Menopausal Vaginal ChangEs) Survey,” Journal of Sexual Medicine 10, no. 7 (2013): 1790-99.
[9] Kathryn E. Sims and Marta Meana, “Why Did Passion Wane? A Qualitative Study of Married Women’s Attributions for Declines in Sexual Desire,” Journal of Sex & Marital Therapy 36, no. 4 (2010): 360-80.
[10] Emily A. Harris, Aki M. Gormezano and Sari M. van Anders, “Gender Inequities in Household Labor Predict Lower Sexual Desire in Women Partnered with Men,” Archives of Sexual Behavior 51, no. 8 (2022): 3847-70.
[11] David A. Frederick et al., “Differences in Orgasm Frequency Among Gay, Lesbian, Bisexual, and Heterosexual Men and Women in a U.S. National Sample,” Archives of Sexual Behavior 47, no. 1 (2018): 273-88.
[12] Audre Lorde, “Uses of the Erotic: The Erotic as Power,” in Sister Outsider: Essays and Speeches (Trumansburg, NY: Crossing Press, 1984), 53-59.
[13] Esther Perel, The State of Affairs: Rethinking Infidelity (New York: Harper, 2017).
[14] Lori A. Brotto et al., “A Randomized Trial Comparing Group Mindfulness-Based Cognitive Therapy with Group Supportive Sex Education and Therapy for the Treatment of Female Sexual Interest/Arousal Disorder,” Journal of Consulting and Clinical Psychology 89, no. 7 (2021): 626-39.
[15] Carolyn J. Crandall, Jessica M. Mehta and JoAnn E. Manson, “Management of Menopausal Symptoms: A Review,” JAMA 329, no. 5 (2023): 405-20.
[16] American College of Obstetricians and Gynecologists, “Female Sexual Dysfunction,” Practice Bulletin No. 213, Obstetrics & Gynecology 134, no. 1 (2019): e1-e18.
