Why outdated beliefs about menstrual pain, hormones, mood, nutrition, and reproductive health can interfere with appropriate care—and what contemporary research actually tells us.
For something experienced by approximately half the population during a significant portion of their lives, menstruation remains remarkably misunderstood.
From the belief that severe menstrual pain is simply something women must tolerate to the assumption that hormonal fluctuations make women emotionally unstable, misconceptions surrounding menstruation have persisted across generations.
Some are rooted in cultural traditions. Others emerge from outdated scientific assumptions, inadequate health education, or the tendency to oversimplify complex biological processes.
But menstrual myths are more than harmless misunderstandings.
They can influence how women perceive their symptoms, how healthcare professionals interpret their concerns, and whether potentially important medical conditions receive appropriate attention.
In 2024, Nature Human Behaviour published an article titled Menstruation Myths, bringing together six researchers to examine common misconceptions involving menstrual stigma, emotional well-being, pain, the vaginal microbiome, and nutrition.
Their perspectives highlight an important distinction: the biological experiences associated with menstruation are real, but many of the beliefs surrounding those experiences are neither scientifically accurate nor clinically helpful.
Understanding the difference is essential for advancing women's health.
Myth #1: Menstruation Is Something That Should Be Hidden
Across many cultures, menstruation has historically been associated with concepts of impurity, embarrassment, or shame.
These beliefs can influence whether women feel comfortable discussing their menstrual experiences, accessing appropriate hygiene facilities, or seeking healthcare.
In the Nature Human Behaviour article, researcher Marni Sommer describes how menstrual stigma manifests through expectations that menstrual products and evidence of menstruation must remain concealed.
In some communities, these expectations create substantial barriers to privacy, sanitation, education, and personal safety.
However, stigma is not limited to lower-resource environments.
Even in high-income countries, menstrual symptoms are frequently discussed through euphemisms, embarrassment, or humor rather than treated as ordinary physiological experiences.
A related 2024 Nature Human Behaviour article, Open and Inclusive Communication Is Key to Managing Menstrual Health, emphasizes that menstrual health requires more than access to products. It also involves education, social support, and an environment where individuals can discuss their needs without discrimination.
The scientific reality: Menstruation is a normal physiological process. It is not inherently unclean, shameful, or a reflection of personal inadequacy.
Normalizing accurate discussion of menstrual health can help reduce barriers to care and support earlier recognition of clinically significant symptoms.
Myth #2: Women Become Emotionally Unstable Before Their Periods
One of the most persistent stereotypes surrounding menstruation is that women universally become irrational, emotionally volatile, or incapable of sound judgment during the premenstrual phase.
Popular culture frequently reinforces this stereotype by portraying hormonal fluctuations as an explanation for women's emotions, decisions, or behavior.
However, this characterization fails to distinguish normal hormonal physiology from clinically significant menstrual-related mood disorders.
Researcher Joan C. Chrisler argues in Menstruation Myths that these stereotypes can undermine women's credibility, professional opportunities, and social standing.
Importantly, not every woman experiences meaningful changes in mood during the menstrual cycle.
Some experience minimal symptoms, while others experience recurring emotional or physical disturbances that substantially affect daily functioning.
Conditions such as premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD) deserve appropriate recognition and treatment.
A 2025 systematic review published in BMC Psychology, Emotion Regulation in Premenstrual Dysphoric Disorder and Premenstrual Syndrome, examined 22 studies involving 1,529 participants.
The researchers identified evidence suggesting that some individuals with PMS or PMDD may experience increased emotional reactivity, difficulty identifying emotional experiences, or greater reliance on rumination during certain menstrual phases.
However, the review also emphasized important limitations in the existing evidence.
The scientific reality: Hormonal fluctuations can influence emotional regulation in susceptible individuals, but they do not universally impair women's judgment, emotional stability, or capabilities.
Women experiencing severe cyclical mood disturbances deserve appropriate clinical evaluation—not dismissal through stereotypes.
Myth #3: Severe Menstrual Pain Is Normal and Should Be Tolerated
Menstrual discomfort is common, but that does not mean severe or disabling pain should be accepted as inevitable.
Dysmenorrhea refers to painful menstruation and is commonly classified into two categories.
Primary dysmenorrhea involves menstrual pain without an identified pelvic disease responsible for the symptoms.
Secondary dysmenorrhea occurs when pain is associated with an underlying condition, such as endometriosis or adenomyosis.
Primary dysmenorrhea is not imaginary or medically insignificant. It involves physiological mechanisms such as prostaglandin-mediated uterine contractions, altered blood flow, and pain signaling.
Secondary dysmenorrhea may involve structural, inflammatory, or other gynecological pathology.
In Menstruation Myths, researcher Paul J. Yong emphasizes that menstrual pain affecting daily function or quality of life deserves assessment rather than normalization.
This distinction is particularly important because menstrual pain is frequently minimized by patients, family members, and even healthcare professionals.
Endometriosis: An Example of Why Menstrual Pain Should Not Be Dismissed
Endometriosis is a chronic inflammatory condition characterized by endometrium-like tissue outside the uterus.
It can cause severe menstrual pain, chronic pelvic pain, pain during intercourse, bowel or bladder symptoms, fatigue, and fertility difficulties.
A 2026 review published in Communications Medicine, Global Inequities and Fragmentation in Guidelines for Endometriosis, highlights persistent diagnostic delays and gaps in access to appropriate care.
The researchers report that some patients still experience delays of many years before receiving a diagnosis.
Such delays can have substantial consequences for quality of life, education, relationships, and daily functioning.
Warning signs warranting evaluation include progressively worsening menstrual pain, significant interference with daily activities, pain outside menstruation, or pain associated with bowel movements, urination, or sexual intercourse.
The scientific reality: Menstrual pain is common, but severe, progressive, or disabling pain deserves clinical investigation and appropriate treatment.
Pain severity alone cannot determine whether someone has endometriosis, but persistent symptoms should not be dismissed simply because they coincide with menstruation.
Myth #4: Menstrual Blood Is Unclean or Harmful to the Vaginal Microbiome
The vaginal microbiome is a dynamic ecosystem of microorganisms that contributes to reproductive and mucosal health.
In many reproductive-age women, beneficial Lactobacillus species dominate the vaginal microbial community.
These microorganisms help maintain an acidic vaginal environment and contribute to protection against certain pathogens.
A common misconception is that menstruation inherently damages this microbial ecosystem.
In the Nature Human Behaviour article, microbiologist Ina Schuppe Koistinen explains that menstrual blood can temporarily influence vaginal pH and microbial composition.
However, these changes are not necessarily harmful.
For many women, the vaginal microbiome remains relatively stable or returns toward its usual composition following menstruation.
Some individuals experience greater shifts in microbial communities, including increases in organisms associated with bacterial vaginosis.
These differences illustrate why vaginal microbial health should be understood as an individual and dynamic process.
Does Every Microbiome Change Require Treatment?
No.
The presence of microbial variation does not automatically indicate disease.
The clinical importance of microbiome findings depends on the organisms involved, symptoms, and broader reproductive health context.
For example, bacterial vaginosis involves a characteristic alteration in vaginal microbial composition and may produce symptoms such as odor or discharge.
However, not every detectable reduction in Lactobacillus abundance requires treatment.
The Nature Human Behaviour article also emphasizes that limited evidence exists regarding the effects of different menstrual products on vaginal microbial health.
The scientific reality: Menstruation can influence the vaginal microbiome, but normal cyclical changes are not equivalent to infection or pathological dysbiosis.
Persistent odor, itching, irritation, unusual discharge, or other concerning symptoms warrant appropriate evaluation rather than assuming the menstrual cycle itself is harmful.
Myth #5: Certain Foods Must Be Avoided During Menstruation
Nutrition advice surrounding menstruation often includes sweeping claims about foods that supposedly worsen cramps, disturb hormonal balance, or interfere with menstrual health.
These recommendations may involve avoiding particular food groups, eliminating specific ingredients, or following restrictive diets during certain menstrual phases.
While nutritional health is important, the evidence supporting many cycle-specific dietary restrictions remains limited.
In Menstruation Myths, researcher Natalie Brown discusses the lack of rigorous research evaluating nutritional interventions for menstrual symptoms.
Her section draws on a systematic review of randomized controlled trials examining nutrition and menstrual health.
The researchers identified considerable differences in intervention protocols, participant characteristics, symptom measurements, and study quality.
These limitations made it difficult to establish reliable recommendations for specific supplements.
The article identifies vitamin D, calcium, zinc, and curcumin as candidates deserving further investigation—not as universally established treatments.
What Does More Recent Research Suggest?
A 2026 systematic review published in BMC Women's Health, Self-Management Strategies for Menstrual Cycle Symptoms, evaluated 39 randomized controlled trials involving 3,806 participants.
The review found encouraging results for several nonclinical interventions, including certain physical activity and nutritional approaches.
Yoga, for example, showed benefits for some measures of menstrual discomfort, fatigue, and mood.
However, the researchers also identified methodological limitations, small sample sizes, and inconsistent outcome measurements.
These findings suggest that some lifestyle interventions may help selected individuals, but stronger evidence is needed before broad recommendations can be made.
The scientific reality: A balanced, nutritionally adequate diet supports general health, but there is insufficient evidence to justify universal food restrictions or supplement protocols based solely on menstrual cycle phase.
Individuals with documented deficiencies, significant symptoms, or specific medical conditions may benefit from targeted nutritional care.
Personalization should be informed by clinical evidence rather than rigid dietary rules.
Myth #6: Missing Your Period Is Normal if You Exercise Frequently
Athletes and physically active women sometimes experience menstrual irregularity or prolonged absence of menstruation.
Historically, these changes have occasionally been interpreted as an expected consequence of intensive training.
However, menstrual suppression should not automatically be considered a harmless marker of athletic commitment.
One important potential cause is low energy availability, which occurs when dietary energy intake is insufficient relative to exercise-related energy expenditure and other physiological demands.
In some individuals, inadequate energy availability can disrupt hypothalamic signaling, suppress reproductive hormone production, and interfere with ovulation.
This may contribute to functional hypothalamic amenorrhea.
Persistent menstrual suppression can have consequences extending beyond reproductive health, including adverse effects on bone health.
These relationships are particularly important in the context of relative energy deficiency in sport (RED-S), which can affect women across different sports, body sizes, and levels of athletic participation.
However, missing periods may also result from pregnancy, hormonal contraception, thyroid disorders, PCOS, perimenopause, or other causes.
The scientific reality: Regular exercise supports health, but the unexplained absence of menstruation is not something to automatically dismiss as a normal training adaptation.
Persistent menstrual irregularity warrants assessment of nutritional intake, exercise demands, medical history, and other potential contributors.
Why Menstrual Myths Persist
If contemporary research challenges these misconceptions, why do they remain so widespread?
Part of the answer lies in the interaction between cultural beliefs, healthcare practices, scientific limitations, and individual experience.
Menstrual experiences vary considerably.
Some women have minimal symptoms, while others experience severe pain, mood disturbances, heavy bleeding, or substantial changes in daily function.
When these differences are poorly understood, individual experiences may be generalized into assumptions about what all women should expect.
Furthermore, conditions primarily affecting women have historically received insufficient research attention relative to their clinical burden.
A 2026 editorial in Nature Medicine, To Bridge the Evidence Gap in Women's Health, Look at the Real World, highlights ongoing deficiencies in the evidence supporting care for female-specific health conditions.
These gaps can contribute to uncertainty, delayed diagnosis, and inconsistent recommendations.
However, limited evidence should not be used to dismiss symptoms.
Instead, it should motivate more rigorous research, better clinical assessment, and transparent communication about what is known and what remains uncertain.
Moving Beyond Myths Toward Research-Informed Women's Healthcare
An important lesson from this research is that women's health cannot be improved simply by replacing one rigid set of beliefs with another.
For example, rejecting the stereotype that all women experience mood changes should not lead us to dismiss individuals with PMDD.
Similarly, recognizing that menstrual pain is common should not prevent clinicians from investigating potentially serious underlying conditions.
And understanding that nutritional strategies may influence menstrual symptoms does not justify recommending every supplement or dietary restriction promoted online.
The goal is to distinguish normal physiological variation from clinically significant dysfunction while respecting individual experiences.
This requires combining scientific evidence with careful clinical assessment and patient education.
Menstrual history, symptom severity, nutritional adequacy, stress, sleep, physical activity, and relevant medical conditions may all contribute valuable information.
Rather than asking women to accept discomfort or conform to generalized expectations, healthcare should help them understand what they are experiencing and which interventions are appropriate.
Our Approach to Women's Health
We believe women's healthcare should be grounded in scientific understanding, individualized assessment, and respect for each patient's lived experience.
Our approach recognizes that menstrual and reproductive health interact with neurological, endocrine, metabolic, immune, psychological, and lifestyle factors.
Within our women's health and wellness programs, we emphasize education and the identification of clinically meaningful patterns rather than assuming that every symptom is normal or that every fluctuation represents dysfunction.
Depending on the individual, this may involve reviewing menstrual history, nutritional intake, exercise habits, sleep patterns, stress burden, and relevant medical concerns.
When appropriate, we encourage targeted investigation and collaboration with gynecologists, endocrinologists, pelvic health specialists, and other qualified professionals.
For example, women experiencing significant menstrual pain may require evaluation for underlying gynecological conditions.
Those with persistent cycle irregularities may benefit from targeted endocrine or metabolic assessment.
Individuals experiencing menstrual disturbances alongside intensive training may need additional evaluation of energy availability and recovery.
Our objective is not to replace specialized reproductive healthcare but to complement it through research-informed education, lifestyle support, and individualized care coordination.
Menstrual Health Deserves Better Than Myths
Menstruation is a normal biological process, but the symptoms and experiences surrounding it vary considerably.
Some women experience minimal disruption, while others face significant physical, emotional, or functional challenges.
Neither experience should be universalized.
The 2024 Nature Human Behaviour article illustrates how misconceptions surrounding menstrual blood, pain, emotions, nutrition, and social expectations can influence healthcare experiences and broader well-being.
It also highlights why meaningful progress requires more than correcting individual myths.
Progress requires better education, stronger research, improved access to appropriate care, and a willingness to recognize women's symptoms without reinforcing stereotypes.
We believe women deserve healthcare that helps them distinguish expected physiological changes from concerns warranting further attention.
Because improving women's health begins not with accepting what we have always been told about menstruation, but with asking better questions, challenging unsupported assumptions, and allowing scientific evidence to inform how we understand and care for the whole person.
Research References
Sommer M, Chrisler JC, Yong PJ, et al. Menstruation myths. Nature Human Behaviour. 2024;8:2086–2089. https://doi.org/10.1038/s41562-024-02057-6
Dubey P, Sivakami M. Open and inclusive communication is key to managing menstrual health. Nature Human Behaviour. 2024;8:2077–2078. https://doi.org/10.1038/s41562-024-02054-9
King S. Why current menstrual policies do not work. Nature Human Behaviour. 2024. https://doi.org/10.1038/s41562-024-01996-4
Lambert E, Hunter M, Cocker H, Gurvich C, Chalder T. Emotion regulation in Premenstrual Dysphoric Disorder and Premenstrual Syndrome: a systematic review. BMC Psychology. 2025;13:1289. https://doi.org/10.1186/s40359-025-03587-y
Tarpey R, Keaver L, Ryan L, et al. Self-management strategies for menstrual cycle symptoms: a systematic review. BMC Women's Health. 2026;26:491. https://doi.org/10.1186/s12905-026-04717-3
Global inequities and fragmentation in guidelines for endometriosis: a scoping review. Communications Medicine. 2026. https://doi.org/10.1038/s43856-026-01907-w
Yakıt Yeşilyurt S, Birinci Olgun T, Dağ Y, et al. Effect of pelvic floor muscle training with or without dynamic neuromuscular stabilization–based breathing on menstrual pain and symptoms of primary dysmenorrhea: a randomized controlled trial. BMC Women's Health. 2026;26:402. https://doi.org/10.1186/s12905-026-04578-w
To bridge the evidence gap in women's health, look at the real world. Nature Medicine. 2026;32:3097. https://doi.org/10.1038/s41591-026-04685-z
Rosen Vollmar AK, Mahalingaiah S, Jukic AMZ. The menstrual cycle: a vital sign across the lifespan. The Lancet Obstetrics, Gynaecology & Women's Health. 2025. https://doi.org/10.1016/j.lanogw.2025.100001