How does women’s sexual desire actually change across the menstrual cycle?
Sexual desire does fluctuate across the cycle, but not in the uniform pattern that popular belief assumes. Kiesner, Bittoni and Pastore reported in the Journal of Sex and Marital Therapy in 2025 on 585 women aged 18 to 40. An increase in sexual desire, and especially in lubrication, was somewhat more common during the ovulatory phase. That phase was not, however, a dependable guide to any individual woman’s experience: variability between participants was high, and the findings contradict the belief in one universal best time in the cycle.
Age, having a steady partner, and the use of hormonal contraception each moderated the pattern. Moderation by age and partnership status suggests that life stage and relationship context carry weight alongside hormonal fluctuation. The group average therefore describes a trend, not a personal schedule. Read closely, cycle phase works as a modest influence on desire at the population level and as a weak predictor at the level of a single person.
Desire does not follow one fixed calendar. — Photo: Yan Krukau / Pexels
What follows for couples is uncomplicated. A calendar cannot tell a woman or her partner how much desire will be present on a given day. Desire can be high during menstruation, low around ovulation, or the reverse, and neither outcome signals that something is wrong.
So why is period sex still labeled ‘dirty’ or shameful?
Because the shame attached to menstrual blood is cultural rather than biological. Hennegan and colleagues published a qualitative metasynthesis in PLoS Medicine in 2019 that reviewed 76 studies with more than 6000 participants across 35 countries. Shame and social stigma around menstruation emerged as a recurring pattern in widely different settings, and that stigma directly affected women’s psychological wellbeing and their behaviour. The authors were explicit that the phenomenon is not confined to a single region or culture.
Shame of this kind operates through concealment. Menstrual blood is treated as something to hide, and the hiding is taught early, through family remarks, school practices, and social expectations about cleanliness. Because the lesson arrives before adult sexuality takes shape, it can be absorbed as a fact about the body rather than as a belief about blood. The metasynthesis treats this effect on wellbeing and behaviour as a central finding rather than a side note.
What remains is a classification that outlives its origin. Women and their partners may hold the sense that period sex is unhygienic without being able to say where the sense came from or why it feels so self-evident.
What effect does this cultural shame have on a couple’s relationship?
It quietly removes options that biology leaves open. When menstrual blood is automatically coded as dirty, couples avoid intimacy on period days even when desire is present, and the 2025 study of 585 women aged 18 to 40 indicates that desire can occur on any day of the cycle rather than only around ovulation. A cultural belief, not a biological fact, is making the decision, often for both partners at once. Neither partner has to feel contempt for the body to end up avoiding it; an inherited category does the work on its own.
In couples counseling, this comes up repeatedly: one partner learned from childhood that menstrual blood signals impurity, and this belief, without any explicit conversation, has quietly reduced the couple’s closeness on period days.
Silence is what keeps the pattern stable. A belief that is never spoken cannot be examined or renegotiated, and the partner who holds it may read the resulting distance as fading attraction rather than as a learned rule about blood. Over time the avoided days become a small, familiar absence that nobody names.
When is it worth discussing this shame with a specialist?
It is worth raising with a specialist when the avoidance persists, when one partner experiences the pattern as rejection, when shame produces distress that outlasts the days themselves, or when the subject cannot be named between the partners at all. A clinician can help separate an inherited belief from a genuine preference, and can help partners hear each other without defending a position.
Formal support is not always required. Some couples settle the matter after a single frank conversation, particularly when one of them states plainly that the disgust was inherited rather than chosen. What tends to distinguish the couples who need help is not the intensity of the shame but the impossibility of discussing it.
Menstrual shame is learned, which means it can also be unlearned. The 2025 study of 585 women aged 18 to 40 and the 2019 metasynthesis of 76 studies point in the same direction: desire varies more between individuals than across cycle phases, while the stigma is widespread and therefore inherited rather than personal. A couple that can name the belief out loud has already moved from automatic avoidance toward choice, and that shift is where closeness tends to return.
For most people it is ordinary sexual activity and not a danger in itself. Pain, unusually heavy bleeding, or an active infection are separate reasons to consult a doctor.
Is women’s sexual desire really lower during their period?
Not as a rule. The 2025 study found desire and lubrication rose somewhat more often around ovulation, but individual variation was large, and desire can occur on any day.
Where does menstrual shame come from?
Mostly from cultural transmission through family, school, and social messages that treat menstrual blood as polluting or as something to conceal. The 2019 metasynthesis found this pattern across 35 countries.
How can couples talk about this topic without embarrassment?
Start with the belief rather than the act. Ask what each partner learned as a child, and keep the exchange descriptive instead of judgmental.
References: Kiesner J, Bittoni C, Pastore M. Female Sexual Desire, Response, and Activity Across the Menstrual Cycle. Journal of Sex and Marital Therapy. 2025. DOI: 10.1080/0092623X.2025.2577679. Hennegan J, Shannon AK, Rubli J, Schwab KJ, Melendez-Torres GJ. Women’s and girls’ experiences of menstruation in low- and middle-income countries: A systematic review and qualitative metasynthesis. PLoS Medicine. 2019. DOI: 10.1371/journal.pmed.1002803.
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Couple sharing closeness in soft morning light. — Photo: Yan Krukau / Pexels Woman pensive by the window at night. — Image: AI-generated / Gemini 3.1 Flash Image via OpenRouter
