--- title: How Common Is PMS? Prevalence Numbers From Research description: How common is PMS? Estimates vary widely by country and study method, from a pooled 53 percent in one systematic review to far lower elsewhere. url: https://niyora.com/statistics/pms-statistics/ --- - [Niyora](https://niyora.com/) - [Statistics](https://niyora.com/statistics/) - How common is PMS? The numbers PMS statistics # How common is PMS? The numbers PMS is common, but there's no single worldwide percentage. Published estimates range from roughly half of women in some studies to far lower in others, depending on how symptoms are defined and measured. A systematic review of Ethiopian studies, for example, found a pooled prevalence of 53%. Updated 14 October 2026 Niyora editorial Mixed evidence ## At a glance - There's no single global PMS percentage. Estimates swing widely depending on the study's definition, method and country. - A systematic review and meta-analysis of nine Ethiopian studies found a pooled PMS prevalence of 53% (PLOS ONE, 2020). - Many people menstruate without any noticeable premenstrual symptoms, so PMS isn't universal. - Severity runs on a spectrum, and most of the gap between studies comes from how they measure PMS, not from the condition itself changing. - Daily tracking across two real cycles gives a far clearer picture of your own pattern than any published average. 53% Pooled PMS prevalence in a systematic review of 9 Ethiopian studies Prevalence and associated factors of premenstrual syndrome among women of the re (2020) 64,286 Women in a BMJ systematic review linking PMS to painful periods Factors predisposing women to chronic pelvic pain: systematic review (2006) ## Strength of evidence Mixed evidence - None - Limited - Mixed - Moderate - Strong PMS prevalence estimates range from roughly half of women in some reviews to far lower in others, depending on definitions, measurement methods and which populations were studied. Large, representative data remain patchy outside a handful of countries, and race-specific US data are largely missing. ## How common is PMS? PMS is very common, but the exact share of people affected depends on the study, the country and how researchers measure it. A systematic review and meta-analysis of nine studies in Ethiopia found a pooled PMS prevalence of 53% (PLOS ONE, 2020). Those nine studies used different screening tools and were run in different regions, which is typical of how PMS research works worldwide. A few factors drive most of that range: - How PMS is defined, as any noticeable change or only symptoms that disrupt daily life - Which screening tool or questionnaire researchers use - The country and population being studied Other research puts the number far lower. Studies that require symptoms to [interfere with work or relationships](https://niyora.com/statistics/pms-work-impact-statistics/), rather than just noticing a change, tend to report smaller percentages. There's no single agreed worldwide figure. A 2025 update to the Global Burden of Disease study, published in Reproductive Health, names PMS as one of the gynecological conditions behind a rising global burden of disease in women of childbearing age. That doesn't give an exact percentage, but it confirms how widespread the condition is. Even that 53% figure means a substantial share of women in the same sample fell outside the threshold researchers used for PMS, a reminder that any single percentage is an average, not a diagnosis. ## Does everyone get PMS? No. Plenty of people menstruate without any noticeable premenstrual symptoms. Among those who do notice something, most have mild changes that don't disrupt their week. [What is PMS?](https://niyora.com/premenstrual-syndrome/) covers the full range, from mild bloating to mood changes that ease once bleeding starts. A smaller group has symptoms severe enough to affect work or relationships, and a smaller group still fits the pattern of [PMDD](https://niyora.com/pmdd/), a separate diagnosis with its own criteria. Researchers sometimes sort PMS into rough bands, no symptoms, mild symptoms that don't need treatment, and moderate to severe symptoms that affect daily function. People can move between these bands from one cycle to the next. Having no premenstrual symptoms at all is normal. Severity also runs on a spectrum. The same person can have a mild month and a rough one back to back, and that alone doesn't signal anything is wrong. ## What do the largest studies find? A handful of larger reviews give the clearest picture, even though their methods differ. Browsing the wider [PMS and PMDD research](https://niyora.com/research/) shows the same pattern. Numbers shift with definition and population. | Study | Scope | What it found | | --- | --- | --- | | Systematic review and meta-analysis, PLOS ONE (2020) | 9 studies, women of reproductive age in Ethiopia | Pooled PMS prevalence of 53% | | Global Burden of Disease update, Reproductive Health (2025) | Global data, women of childbearing age, 1990 to 2021 | PMS named among conditions driving a rising gynecological disease burden | | Systematic review, BMJ (2006) | 64,286 women across 63 studies | PMS linked to a higher risk of painful periods (dysmenorrhoea) | | Narrative synthesis, Fertility and Sterility (2023) | US racial and ethnic disparities in women's mental health | No systematic review on PMS or PMDD prevalence by race met inclusion criteria | Two of these four relied on systematic review methods, pooling multiple original studies rather than reporting a single survey. The Global Burden of Disease update used burden-of-disease modeling rather than a review of pooled studies, and the Fertility and Sterility narrative synthesis found a gap instead of a number, which is informative on its own. That last row matters. There isn't yet a solid, race-disaggregated picture of PMS in the US, even though the condition has been studied worldwide. What the research says These are the largest reviews available on PMS prevalence, but their methods differ enough that averaging the numbers together across them wouldn't be meaningful. ## How do the numbers vary by age and country? Country and culture shape the reported numbers as much as biology does. The Ethiopian meta-analysis reports one of the higher figures in the published research (53%), while other national surveys land well below that, often because they count only symptoms that disrupt daily life. Even within one country, urban and rural samples can report different rates. That gap often ties back to access to healthcare and how comfortable women feel describing symptoms to a researcher. Age plays a role too, mostly through overlapping conditions. A large systematic review of 64,286 women found that being under 30, starting periods before age 12, and having heavier or longer cycles were all linked with painful periods, with PMS showing up repeatedly alongside those same risk factors (BMJ, 2006). That pattern reflects overlapping risk factors, not proof that PMS itself gets worse with age. Painful periods and PMS often travel together in younger women, probably because both relate to how early periods started and how heavy the cycles are. Many of the world's most populous countries don't yet have large, representative PMS prevalence studies. That gap is part of why global comparisons stay rough. ## Why do estimates differ so much? Three things drive most of the spread in reported numbers. - Definition: some studies count anyone who notices any premenstrual change, others require symptoms that interfere with work, school or relationships. - Method: a one-off question like 'do you get PMS' tends to produce different answers than symptom ratings kept daily across real cycles. - Population: age range, country and who was recruited, university students versus a national sample, all shift the result. These differences come from how researchers measure PMS, not from large shifts in the condition itself. There's also a gap in who gets studied. A 2023 narrative synthesis in Fertility and Sterility searched for systematic reviews on racial or ethnic differences in PMS and PMDD in the US and found none that met its inclusion criteria. The numbers that do exist may not reflect every population equally. ## What should you do with PMS statistics like these? Whatever the global percentage, your own pattern matters more day to day. If your symptoms show up in the week or two before your period and ease once it starts, that fits the usual PMS pattern, no matter which published number you'd land in. Most months will look a little different from each other, and that's part of a normal cycle. The clearest way to find your pattern is to track it for yourself. - Write down your mood, energy and physical symptoms each day for two cycles. - Mark the day your period starts each time. - Look for symptoms that cluster in the days before bleeding and fade within a few days after it starts. Niyora is a PMS and PMDD support app. Its estimated PMS window can show you, over a cycle or two, where your own pattern tends to sit, so you're working from your own data rather than someone else's statistic. From the research library ## Research on prevalence 980 studies in the library look at prevalence in PMS and PMDD. They were published from 1964 to 2026, and each one has a short summary of what was tested and found. 980 studies, 1964 to 2026 How strong the studies are Strong study design 46 Moderate study design 340 Early or limited evidence 594 - [Cohort study, 2026Is PMS becoming more common and more disabling worldwide?Yes. Globally, PMS cases rose 49.88% and the disability caused by PMS rose 49.46% between 1990 and 2021. This trend is expected to continue through 2035.Strong study design](https://niyora.com/research/papers/a-systematic-analysis-of-pms-related-disease-burden-in-china-and-globally-2026/) - [Systematic review, 2026How often do mood disorders and PMS or PMDD occur together?Very often. Between 42% and 49% of women have both PMS or PMDD and a mood disorder at the same time, depending on which condition was diagnosed first.Strong study design](https://niyora.com/research/papers/a-systematic-review-and-meta-analysis-on-the-comorbidity-of-premenstrual-2026/) - [Cohort study, 2026Does having PMS before pregnancy increase the risk of postpartum depression?Yes. Women with a PMS history were 45 percent more likely to develop postpartum depression within one year after birth, with 5.4 percent of women with PMS developing it compared to 3.8 percent without PMS.Strong study design](https://niyora.com/research/papers/effect-of-premenstrual-syndrome-on-the-risk-of-postpartum-depression-within-one-2026/) - [Cohort study, 2025Are irregular menstrual cycles linked to lower thinking and memory skills in middle-aged women?Yes. Women with irregular cycles at ages 29-46 and women with very short cycles (25 days or less) at ages 18-22 both had slightly lower memory scores later in life.Strong study design](https://niyora.com/research/papers/menstrual-cycle-characteristics-across-the-reproductive-lifespan-and-cognitive-2025/) - [Cohort study, 2025Does having PCOS raise the risk of premenstrual disorders like PMS or PMDD?Yes. Women with PCOS had a higher risk of being diagnosed with a premenstrual disorder than women without PCOS, and this held up even when comparing sisters to each other.Strong study design](https://niyora.com/research/papers/polycystic-ovary-syndrome-and-the-risk-of-premenstrual-disorders-a-nationwide-2025/) - [Cohort study, 2025Do women with premenstrual disorders have higher risk of heart disease?Yes. Women with premenstrual disorders have about 10-11% higher risk of cardiovascular disease compared to women without premenstrual disorders. This risk is higher if the disorder began before age 25 or occurred alongside perinatal depression.Strong study design](https://niyora.com/research/papers/premenstrual-disorders-and-risk-of-cardiovascular-diseases-2025/) [See all 980 studies on prevalence and epidemiology](https://niyora.com/research/topics/method-prevalence/) ## Questions people ask Does everyone have PMS? + No. Many people menstruate without any noticeable premenstrual syndrome at all. Among those who do notice symptoms, most are mild and pass quickly. Severe, disruptive PMS affects a smaller share of women, and PMDD, a separate diagnosis, affects fewer people still, around 1.6 to 3.2 percent depending on the study (Reilly et al., 2024). How does PMS prevalence compare with PMDD? + PMS is common, and PMDD is a separate, less common diagnosis. PMDD affects about 1.6% of women and girls in community studies confirmed with daily tracking, 3.2% across all confirmed studies, and up to 7.7% when the diagnosis is provisional (Reilly et al., 2024). See [how common PMDD is](https://niyora.com/statistics/pmdd-statistics/) for the full numbers. Why do PMS statistics vary so much between studies? + PMS statistics vary because studies define and measure it differently. Some count anyone who notices mild changes; others require symptoms that disrupt work or relationships. A 2020 Ethiopian meta-analysis found 53% prevalence, while stricter surveys elsewhere report far lower numbers. Method and population explain most of the gap. Does PMS get worse as you get older? + PMS itself doesn't clearly worsen with age in the research. A large pelvic pain review linked being under 30, along with PMS, to higher rates of painful periods, but that reflects overlapping risk factors rather than PMS getting worse over time (BMJ, 2006). What if my premenstrual symptoms feel much worse than typical PMS? + If this takes a week of every month, or you have thoughts of hurting yourself, see a GP or gynecologist and bring two months of daily notes on your symptoms. That record helps separate PMS from PMDD or another cause showing up on a cycle. ## Sources - 1. [Prevalence and associated factors of premenstrual syndrome among women of the reproductive age group in Ethiopia: Systematic review and meta-analysis](https://doi.org/10.1371/journal.pone.0241702), PloS one, 2020 - 2. [Rising global burden of common gynecological diseases in women of childbearing age from 1990 to 2021: an update from the Global Burden of Disease Study 2021](https://doi.org/10.1186/s12978-025-02013-1), Reproductive health, 2025 - 3. [Factors predisposing women to chronic pelvic pain: systematic review](https://doi.org/10.1136/bmj.38748.697465.55), BMJ (Clinical research ed.), 2006 - 4. [Racial and ethnic disparities in women's mental health: a narrative synthesis of systematic reviews and meta-analyses of the US-based samples](https://doi.org/10.1016/j.fertnstert.2023.01.032), Fertility and sterility, 2023 Ask AI about this page Copy prompt ChatGPT ↗ Claude ↗ Perplexity ↗ Google AI Mode ↗ Grok ↗ On this page - [How common is PMS?](#how-common-is-pms) - [Does everyone get PMS?](#does-everyone-get-pms) - [What do the largest studies find?](#what-do-the-largest-studies-find) - [How do the numbers vary by age and country?](#how-do-the-numbers-vary-by-age-and-country) - [Why do estimates differ so much?](#why-do-estimates-differ-so-much) - [What should you do with PMS statistics like these?](#what-should-you-do-with-pms-statistics-like-these) - [Research](#research) - [Questions](#faq) Niyora PMS & PMDD support For the hard moment before your period. Private, no account. [Get it on iPhone](https://apps.apple.com/app/niyora-pms-emotions/id6764561688) ## Keep reading Condition PMDD (premenstrual dysphoric disorder), explained Condition What is PMS? Premenstrual syndrome, explained Guide All 26 research findings Question What causes PMDD? Statistic How common is PMDD? The numbers Statistic PMDD and divorce: what the studies measured Statistic How long PMDD takes to get diagnosed Statistic PMS productivity loss: how PMS and PMDD affect work