{"id":105254,"date":"2026-08-17T15:30:00","date_gmt":"2026-08-17T13:30:00","guid":{"rendered":"https:\/\/sileu.com\/?p=105254"},"modified":"2026-08-14T08:30:08","modified_gmt":"2026-08-14T06:30:08","slug":"menstrual-cup-reviews-good-bad-truth","status":"publish","type":"post","link":"https:\/\/sileu.com\/en\/menstrual-cup-reviews-good-bad-truth\/","title":{"rendered":"Menstrual Cup Reviews: The Good, the Bad, and What Nobody Tells You"},"content":{"rendered":"<p>We&#8217;re going to do something unusual for the website of a brand that sells cups: tell you the bad things too. If you&#8217;re looking for <strong>menstrual cup reviews<\/strong>, you&#8217;ll find two extremes \u2014 the fanaticism of &#8220;it changed my life&#8221; and the drama of &#8220;I hated it and went back to tampons&#8221; \u2014 and both are real experiences. After years of selling cups, reading reviews and answering hundreds of questions on our forum, we have a fairly complete picture of what real users think. This is the honest version: the good, the bad and what almost no advert tells you.<\/p>\n\n<h2>The fact that puts all menstrual cup reviews in order<\/h2>\n<p>Before the anecdotes, the science. The <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/31324419\/\" rel=\"noopener nofollow\" target=\"_blank\">largest scientific review of menstrual cups<\/a>, published in The Lancet Public Health (43 studies, more than 3,300 participants), found two things that sum it up: leakage with a cup is <strong>equal to or lower<\/strong> than with tampons and pads, and around <strong>70% of people who try it want to keep using it<\/strong> afterwards.<\/p>\n<figure><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/sileu.com\/wp-content\/uploads\/2026\/08\/AG7_dato_lancet_70_en.png\" alt=\"Menstrual cup reviews: 70 percent want to keep using it according to The Lancet\" width=\"1200\" height=\"640\" title=\"\"><figcaption>7 out of 10 stick with the cup after trying it. Few products stand up to that kind of scrutiny.<\/figcaption><\/figure>\n<p>Think about it the other way round: 30% don&#8217;t continue. The cup isn&#8217;t for everyone, and anyone who tells you otherwise is selling you something. But 70% loyalty after trying something so different from what we&#8217;d used all our lives is a figure no disposable product can show. The <a href=\"https:\/\/sileu.com\/es\/bases-cientificas\/\">scientific basis of the cup<\/a> is, in short, more than well established.<\/p>\n\n<h2>The good: what thousands of positive reviews repeat<\/h2>\n<ul>\n<li><strong>&#8220;I forget I have my period.&#8221;<\/strong> Up to 12 hours of continuous wear. You put it in in the morning and don&#8217;t think about it again until the evening. It&#8217;s by far the most repeated comment.<\/li>\n<li><strong>&#8220;No more buying every month.&#8221;<\/strong> A \u20ac14.99-19.99 cup that lasts years compared with \u20ac60-120 a year on disposables. The math does itself: a cup lasts years, a pack of pads lasts a month.<\/li>\n<li><strong>&#8220;No dryness or odor.&#8221;<\/strong> The cup collects instead of absorbing: it doesn&#8217;t dry out the mucosa like a tampon, or create the smell of blood in contact with air that a pad does.<\/li>\n<li><strong>&#8220;Sport, swimming and sleeping, sorted.&#8221;<\/strong> No strings, no changes every 4 hours, no awkward moments in the water.<\/li>\n<\/ul>\n\n<div class=\"sileu-cta\" style=\"border:2px solid #EA0029;border-radius:12px;padding:18px 22px;margin:1.5em 0;background:#FFF3F5\">\n<p style=\"margin:0 0 6px\"><strong>The cup with the best beginner reviews: Sileu Rose \u2014 \u20ac19.99<\/strong><\/p>\n<p style=\"margin:0 0 10px\">A rose shape designed in Spain, a soft feel and a size designed for starting out. Medical-grade silicone certified to ISO 10993. Shipped from Spain in 24-72h.<\/p>\n<p style=\"margin:0\"><a href=\"https:\/\/sileu.com\/en\/product\/menstrual-cup-sileucup-model-rose\/\"><strong>See the Sileu Rose \u2192<\/strong><\/a><\/p>\n<\/div>\n\n<h2>The bad: the real complaints (and how fixable they are)<\/h2>\n<figure><img decoding=\"async\" src=\"https:\/\/sileu.com\/wp-content\/uploads\/2026\/08\/AG7_tabla_bueno_malo_en.png\" alt=\"Table of menstrual cup reviews: what people love and what&#039;s hard\" width=\"1200\" height=\"640\" title=\"\"><figcaption>The honest summary: four things people love, four that are hard.<\/figcaption><\/figure>\n<ul>\n<li><strong>The learning curve is real.<\/strong> In the first 2-3 periods there can be frustrating moments: folds that don&#8217;t open, the cup <a href=\"https:\/\/sileu.com\/es\/copa-menstrual-se-sale\/\">slipping down<\/a>, the odd leak until you get the hang of it. People who give up usually give up here \u2014 just before it becomes automatic. Our guides to <a href=\"https:\/\/sileu.com\/en\/ways-to-fold-your-menstrual-cup-tips-and-tricks\/\">folds<\/a> and <a href=\"https:\/\/sileu.com\/es\/perdidas-que-ocurre-con-la-copa-menstrual\/\">leaks<\/a> solve 90% of cases.<\/li>\n<li><strong>Emptying it away from home is daunting.<\/strong> In a public restroom without a sink in the stall, you need to carry a small bottle of water or wipe it with paper and rinse it later. It&#8217;s solvable, but it&#8217;s real (see <a href=\"https:\/\/sileu.com\/en\/cleaning-menstrual-cup-public-restrooms-travel-festivals\/\">cleaning the menstrual cup in public restrooms<\/a>).<\/li>\n<li><strong>Getting the size right isn&#8217;t always immediate.<\/strong> On our forum, the most repeated questions are about size and model: &#8220;I&#8217;m over 25 and haven&#8217;t given birth, which one do I choose?&#8221;, &#8220;I had a C-section, S or L?&#8221;. The <a href=\"https:\/\/sileu.com\/en\/menstrual-cup-sizes-guide\/\">size guide<\/a> clears it up, and the Starter pack (below) solves it completely.<\/li>\n<li><strong>You have to touch yourself.<\/strong> Inserting and <a href=\"https:\/\/sileu.com\/en\/how-to-take-out-your-menstrual-cup-without-a-problem\/\">removing<\/a> the cup involves contact with your body and your blood. For many it ends up being a bonus in getting to know yourself; for others it&#8217;s a legitimate barrier. If that&#8217;s you, don&#8217;t force yourself: there are <a href=\"https:\/\/sileu.com\/es\/causas-del-miedo-al-uso-de-la-copa-menstrual\/\">very common fears<\/a> that dissolve with information, but the last word is yours.<\/li>\n<\/ul>\n\n<h2>What nobody tells you (neither fans nor critics)<\/h2>\n<p>Three things that almost never appear in reviews and should:<\/p>\n<ul>\n<li><strong>You can use the toilet with it in.<\/strong> Surprisingly, it&#8217;s one of the most searched questions: yes, <a href=\"https:\/\/sileu.com\/es\/ir-al-bano-copa-menstrual\/\">peeing and pooping with the cup in<\/a> is perfectly possible.<\/li>\n<li><strong>You&#8217;ll get to know your period for the first time.<\/strong> The cup shows you how much you bleed in real milliliters. Many users discover their &#8220;super-heavy period&#8221; is 40 ml\u2026 and others discover theirs really does warrant seeing a doctor. That information is gold.<\/li>\n<li><strong>Its safety is better studied than almost any alternative.<\/strong> The Lancet review found no increase in infections, and cases of <a href=\"https:\/\/sileu.com\/es\/sindrome-del-shock-toxico-sst-y-uso-de-la-copa-menstrual\/\">toxic shock syndrome<\/a> associated with cups are extraordinarily rare. With basic hygiene, the cup is a safe option \u2014 and even so, as always: if you get a sudden high fever with any internal product in, remove it and seek medical attention.<\/li>\n<\/ul>\n<p>And a manufacturer&#8217;s reflection, with data and no conspiracy theories: why do menstrual cup reviews spread by word of mouth rather than advertising? Because a product that ends monthly repurchasing doesn&#8217;t fund campaigns. The disposables industry makes money from you every month; the cup, once. Guess which of the two business models pays for TV ads.<\/p>\n\n<h2>The questions most often asked before buying<\/h2>\n<p>We&#8217;ve been answering questions on our support forum for years, and there&#8217;s a very clear pattern: almost nobody doubts whether the cup &#8220;works&#8221; \u2014 they doubt whether it works <strong>for their particular case<\/strong>. The most repeated questions, with our honest opinion:<\/p>\n<ul>\n<li><strong>&#8220;I had a C-section, which size do I choose?&#8221;<\/strong> Sileu&#8217;s size criteria don&#8217;t depend only on whether you&#8217;ve had a vaginal birth; age and pelvic floor strength matter too, which is why the Starter pack with both sizes removes the doubt entirely.<\/li>\n<li><strong>&#8220;Can I be allergic to the silicone?&#8221;<\/strong> It&#8217;s one of the most frequent questions, and the answer is reassuring: our cups are made of medical-grade silicone certified to ISO 10993, precisely the biocompatibility standard for materials in contact with the body; silicone allergy exists, but it&#8217;s rare. We cover it in <a href=\"https:\/\/sileu.com\/en\/disadvantages-menstrual-cup-not-best-option\/\">disadvantages of the menstrual cup<\/a>.<\/li>\n<li><strong>&#8220;Why does my cup slip out or down?&#8221;<\/strong> It&#8217;s almost always a matter of size, of it not having opened properly when inserted, or of a particularly strong pelvic floor pushing it down. It isn&#8217;t a product fault or something that happens &#8220;only to you&#8221; \u2014 it&#8217;s one of the most asked-about issues, and the solution is almost always simple.<\/li>\n<\/ul>\n<p>That pattern, more than any five-star review, is the opinion that counts most: most initial doubts have a clear answer and aren&#8217;t a reason to rule out the cup before trying it.<\/p>\n\n<h2>What if I try it and I&#8217;m not convinced?<\/h2>\n<figure><img decoding=\"async\" src=\"https:\/\/sileu.com\/wp-content\/uploads\/2026\/08\/AG7_comp_rose_starter_en.jpg\" alt=\"Sileu Rose menstrual cup reviews and the Starter pack with two sizes to try\" width=\"1200\" height=\"640\" title=\"\"><figcaption>The two lowest-risk ways to try: the Rose to start with, or the Starter with both sizes.<\/figcaption><\/figure>\n<p>Our honest advice: give it <strong>three cycles<\/strong> before deciding, because your opinion on day one and in month three are often opposite. Start at home, without rushing, following our guide to <a href=\"https:\/\/sileu.com\/en\/how-to-choose-your-first-menstrual-cup-beginners-guide\/\">choosing your first menstrual cup<\/a>. If you&#8217;re unsure about size, the <a href=\"https:\/\/sileu.com\/en\/product\/pack-de-inicio-copa-menstrual-sileu-talla-s-l-modelo-y-color-a-elegir\/\">Starter pack<\/a> (\u20ac21.99) includes S and L of the model you choose: it costs less than two cups and takes the lottery out of it. And if in the end the cup isn&#8217;t for you, that&#8217;s fine: <a href=\"https:\/\/sileu.com\/en\/product\/sileu-organic-cotton-certified-oeko-tex-menstrual-underwear-black-reusable-breathable-absorbent-comfortable-hypoallergenic\/\">period underwear<\/a> (\u20ac9.99) is the reusable alternative with no learning curve. What matters is that the decision is yours and well informed \u2014 that&#8217;s why we wrote this.<\/p>\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<div class=\"rank-math-list \">\n<div id=\"faq-question-1\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">What do users think of the menstrual cup in general?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>The strongest evidence (a review in The Lancet Public Health of 43 studies) indicates that around 70% of people who try the menstrual cup want to keep using it. Positive reviews highlight the 12 hours of wear, the savings and the comfort; negative ones focus on the learning curve in the first periods and the hassle of emptying it away from home.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-2\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">Is it true the menstrual cup leaks less than a tampon?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>According to the systematic review published in The Lancet Public Health, leakage with a menstrual cup is equal to or lower than with tampons and pads. That said, during the initial learning period (2-3 cycles), leaks from poor placement or the wrong size are normal until you get the hang of it.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-3\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">How long does it take to get used to a menstrual cup?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>Most users need between one and three cycles for inserting and removing it to become automatic. That&#8217;s why the honest recommendation is not to judge the cup on day one: your opinion in month three is usually radically better than on your first try.<\/p>\n\n<\/div>\n<\/div>\n<div id=\"faq-question-4\" class=\"rank-math-list-item\">\n<h3 class=\"rank-math-question \">Which menstrual cup is best to start with if I&#8217;m unsure about size?<\/h3>\n<div class=\"rank-math-answer \">\n\n<p>If you&#8217;re not sure of your size, a pack with two sizes such as the Sileu Starter (S + L for \u20ac21.99) removes the risk of getting it wrong and costs less than buying two cups. If you&#8217;d rather have just one, the Sileu Rose (\u20ac19.99) is designed for beginners because of its size and soft feel.<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"sileu-cta\" style=\"border:2px solid #9E0021;border-radius:12px;padding:18px 22px;margin:1.5em 0;background:#FFF3F5\">\n<p style=\"margin:0 0 6px\"><strong>No size lottery: Starter pack S + L \u2014 \u20ac21.99<\/strong><\/p>\n<p style=\"margin:0 0 10px\">Both sizes of the model you choose, for less than two cups cost. The safest way to form your own opinion of the menstrual cup. Shipped from Spain in 24-72h.<\/p>\n<p style=\"margin:0\"><a href=\"https:\/\/sileu.com\/en\/product\/pack-de-inicio-copa-menstrual-sileu-talla-s-l-modelo-y-color-a-elegir\/\"><strong>See the Starter pack \u2192<\/strong><\/a><\/p>\n<\/div>\n\n<div class=\"sileu-sigue\"><p><strong>Keep reading:<\/strong><\/p><ul>\n<li><a href=\"https:\/\/sileu.com\/es\/causas-del-miedo-al-uso-de-la-copa-menstrual\/\">Common fears about the cup<\/a> \u2014 the five fears that hold almost everyone back (and how to dismantle them).<\/li>\n<li><a href=\"https:\/\/sileu.com\/en\/menstrual-cup-sizes-guide\/\">Menstrual cup size guide<\/a> \u2014 beginners&#8217; number-one mistake is avoided here.<\/li>\n<li><a href=\"https:\/\/sileu.com\/en\/transitioning-to-the-menstrual-cup-we-can-help-you-leave-pads-and-tampons-behind\/\">Transitioning to the menstrual cup<\/a> \u2014 how to leave tampons and pads behind without scares.<\/li>\n<li><a href=\"https:\/\/sileu.com\/en\/disadvantages-menstrual-cup-not-best-option\/\">Disadvantages of the menstrual cup: when it&#8217;s NOT your best option<\/a> \u2014 the uncomfortable side, unvarnished, so you can decide with all the information.<\/li>\n<\/ul><\/div>\n","protected":false},"excerpt":{"rendered":"<p>We&#8217;re going to do something unusual for the website of a brand that sells cups: tell you the bad things too. If you&#8217;re looking for menstrual cup reviews, you&#8217;ll find two extremes \u2014 the fanaticism of &#8220;it changed my life&#8221; and the drama of &#8220;I hated it and went back to tampons&#8221; \u2014 and both [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":105255,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[50912],"tags":[],"class_list":["post-105254","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-foundations-discovery"],"_links":{"self":[{"href":"https:\/\/sileu.com\/en\/wp-json\/wp\/v2\/posts\/105254","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sileu.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sileu.com\/en\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/sileu.com\/en\/wp-json\/wp\/v2\/comments?post=105254"}],"version-history":[{"count":1,"href":"https:\/\/sileu.com\/en\/wp-json\/wp\/v2\/posts\/105254\/revisions"}],"predecessor-version":[{"id":105907,"href":"https:\/\/sileu.com\/en\/wp-json\/wp\/v2\/posts\/105254\/revisions\/105907"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sileu.com\/en\/wp-json\/wp\/v2\/media\/105255"}],"wp:attachment":[{"href":"https:\/\/sileu.com\/en\/wp-json\/wp\/v2\/media?parent=105254"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sileu.com\/en\/wp-json\/wp\/v2\/categories?post=105254"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sileu.com\/en\/wp-json\/wp\/v2\/tags?post=105254"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}