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Gynae health kit from Daye. The kit is open, showing a tampon applicator, a wrapped tampon, and an instruction booklet with floral designs. The text reads 'Gynae health, deciphered.

Vaginal Microbiome Test

Explore your unique vaginal microbiome composition with our convenient, at-home tampon sample collection kit. Learn about the balance of microorganisms in your vaginal environment.

tampon icon organic fibres sanitised to prevent TSS
Pain-free sample collection
DNA icon that is blue and minty green representing the PCR technology we use in our Diagnostic Tampon screening service
Results within 5 to 10 days
pink cross to signify aftercare services for medical support including nurse consultations and prescriptions
Personalized support

Taking control of your vaginal wellness has never been easier with Daye's innovative Microbiome Test. All you have to do is insert the tampon, wear it for 20 minutes, and remove. You don’t need to be on your period, which means you can be menopausal, pregnant or on long-term contraception. Ship your return box, and our accredited labs will process your sample.

​​We use sophisticated molecular PCR - the most accurate method available for detecting and quantifying levels of vaginal microorganisms. Your in-depth results will be available online in just 5-10 days. In addition to your screening report, you'll get access to virtual consultations with coaches and Personalized lifestyle recommendations, tailored to your needs.


Once your Daye tampon sample arrives at our laboratory, our team of experts will process it. You can expect your personalized results report to be available online within just 5-10 days. We'll send you an email notification as soon as your report is ready to view securely in your private Daye account dashboard. With Daye, you can trust that your vaginal microbiome results will be delivered quickly and discreetly.


Our Vaginal Microbiome test uses a specialized tampon with an applicator, that's comfortable and very easy to use at home. The innovative collection method collects more vaginal fluid compared to traditional swabs, reaching the entire vaginal canal. This allows us to accurately measure the levels of microorganisms naturally present in your vaginal microbiome.


Frequently bought together

Who is this service for?

If you have recurrent infections

Our Microbiome Test measures the balance of beneficial and potentially disruptive bacteria naturally present in the vagina, helping you understand your susceptibility to infection.

We suggest screening 2-4 times per year

If you have fertility concerns

The vaginal microbiome plays a role in reproductive wellness, and disruptions can impact fertility.

We suggest a one-off screen to understand your balance.

If you are in (peri)menopause

During perimenopause, hormonal changes can affect your vaginal microbiome, which may influence vaginal comfort and wellness.

We suggest two screens per year to support a healthy and well-balanced vaginal environment
Why should I get screened?

Detect levels of bacteria that can disrupt the vaginal flora

Discover your levels of protective lactobacilli bacteria

Support your fertility journey with a balanced microbiome

Learn about your vaginal microbiome's role in reproductive health

Vaginal flora petri dish

Wait, the vaginal micro-what?

Like your gut, your vagina is home to billions of bacteria (some good, some bad). These make up your vaginal microbiome. The balance of your vaginal microbiome can influence different aspects of your reproductive and vaginal wellness.

Which microorganisms do we test for?

Using advanced PCR technology, Daye tampons collect vaginal fluid samples from the entire vaginal canal. This allows for a comprehensive analysis of your vaginal microbiome.

Lactobacilli

Good bacteria in your vaginal microbiome.

Anaerobic bacteria

Cause infections like bacterial vaginosis (BV).

Candida

Candida is a fungus which affects 75% of women.

Mycoplasma/ Ureaplasma

According to studies, can affect fertility.

Coming soon

Chlamydia

A very common STI caused by a bacterial infection.

*Only available with the STI Screen

Coming soon

Gonorrhoea

An STI that can affect both men and women.

*Only available with the STI Screen

Coming soon

Trichomoniasis

One of the most common STIs worldwide.

*Only available with the STI Screen

Coming soon

HPV screening

Detects the presence of high risk human papillomavirus strains.

*Only available with the HPV Screen

Coming soon

Herpes Type I & II

Can potentially infect another person.

*Only available with the STI Screen

How does the screen work?

What is included with every screening?

1

Order your screening kit & get it delivered to your door

The kit will arrive at your doorstep in a discreet package, designed for convenient at-home use.

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Women holding a screen kit
2

Collect and send off your sample to our accredited lab

Activate your kit with your unique code, complete a short questionnaire, and send your sample - we'll handle the rest.

2
Woman holding a diagnostic tampon
3

Receive detailed microbiome insights

We will never leave you hanging. Access a range of resources – from consultations with coaches to personalized lifestyle suggestions to action your results.

3
Lactobacilli bacteria results
4

Connect with vetted coaches & get personalized support

After reviewing your report, you can set up virtual consultations with our coaches specializing in vaginal and reproductive wellness including fertility and menopause support.

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Health Coach Consultaiton
5

Discover simple everyday changes you can implement support your vagina

Every report includes science-backed, personalized insights into lifestyle changes you can adopt to further enhance your microbiome balance.

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Mobile lifestyle hacks

Be your own health hero

Got an infection that keeps coming back?

Understanding your microbiome can provide insights into your vaginal health patterns.

Learn more

Own your fertility journey.

Support your fertility with a balanced vaginal environment.

Learn more

Going through menopause?

Nurture your microbiome as your body adapts to the natural hormonal changes.

Learn more

See our Founder’s results!

Wondering what we test for, and what results look like? Enter your email below and Valentina, our Founder, will send you her screening report.

Your email

By entering your email above you agree to receive marketing emails and promotions from Daye.

Your data is for your eyes only

Protecting your privacy is the least we can do

Frequently asked questions

Still have questions? Read all of our FAQs.

Think of it as the immune system to your reproductive tract. It contains good bacteria (lactobacilli) and disruptive microorganisms (yeasts, viruses). A healthy vaginal microbiome is one where the good bacteria keep the disruptive ones in check, preventing them from growing out of control and causing an infection. A balanced microbiome has been linked to a lower risk of vaginal infections, STIs, and reproductive difficulties. Understanding your vaginal microbiome composition can help you better understand and support your vaginal health journey.


The tampon offers a non-invasive, familiar method of obtaining a testing sample that makes the screening experience at home more comfortable and accessible. Further, tampons collect a comprehensive sample from the entirety of the vaginal canal, allowing for more detailed microbiome insights, compared to traditional methods like swabs. The applicator enables smooth insertion in the vagina, and it also helps maintain sample quality during collection.


There are several studies that show the link between having a healthy vaginal microbiome and a lower risk of getting vaginal yeast infections, a lower risk of contracting STIs, improved fertility and lower risks of miscarriage and preterm birth, and a lower risk of developing gynecological cancers. You can find more study references at the bottom of the vaginal Microbiome Testing page, as well as in your test results.


We will analyze your microbiome for lactobacilli (the good, protective bacteria that support vaginal health), Gardnerella vaginalis and Prevotella (anaerobic bacteria, linked to bacterial vaginosis), Candida (a yeast, linked to yeast infection), Mycoplasma hominis, Mycoplasma genitalium and Ureaplasma parvum and urealyticum.


While our screening provides detailed insights into your vaginal microbiome composition, it is not diagnostic. We offer consultations with expert coaches to help interpret your results, PDF reports you can share with healthcare providers and personalized health insights and recommendations. Please note that STI testing and HPV testing are not available in the US.


After your sample reaches our lab, it will be analyzed within 5–10 days. You will receive an email notification when your results are ready for review, or if there was an issue with your sample.


After you receive your results, you will be able to book a one-on-one consultations with vetted health coaches and access evidence-based lifestyle recommendations to optimize vaginal health. You'll gain insights into how daily choices like contraception and intimate products affect your microbiome.


We use a testing method called qPCR that's more advanced than traditional lab tests. Instead of having a technician look at samples under a microscope, qPCR automatically measures the exact amounts of different bacteria in your vaginal microbiome. This means we can tell precisely how much of each type of bacteria is present—for instance, whether specific bacteria make up just 1% or 40% of your microbiome. Research shows this automated approach is more reliable than older testing methods because it removes human error and provides more detailed results.


We use certified labs in both the UK and US to test samples and process your results. Our UK partner labs are UKAS and CQC certified, while our US labs are CLIA and CAP certified. We also use CE-marked PCR panels. These certifications ensure our testing meets high quality standards.


In order to take a sample at least 5 days must have passed since your last period ended. There are a few other requirements: no antibiotics or antifungals in the last 30 days, no douching, penetrative vaginal sex, and vaginally applied meds or creams in the 24 hours before. That will ensure your microbiome is in a stable state and that your results are representative of your usual vaginal environment.


Using the kit at home is super easy — you just need to insert the provided tampon, wear it for at least 20 minutes (and up to 8 hours), and then put it in the pouches you have received in the kit, and ship it back to us in the same box you received initially. We’ve prepared detailed video instructions which you’ll see after completing the test activation questionnaire in your account.


Right now, we're offering our at-home STI & HPV screening services exclusively in the UK. We know reproductive health doesn't stop at borders though, so we're working hard to bring our tampon-based screening to more countries in the future! If you're outside the UK and interested in our screening service, sign up for our newsletter to be the first to know when we launch in your area.


  • 2 tampons to take your sample — one to take your sample with and one for backup (double check the expiry date)
  • A blue sterile pouch to keep the tampon sample safe from contamination
  • A see-through shock-proof pouch to ensure the sample is protected on its way to the lab
  • A 10 ml container with a transport medium liquid to protect your sample while on its way to the lab
  • Step-by-step instructions on how to do the test + a card with the activation code
  • For your convenience, the return label, which you can use to ship your sample back to our partner lab, is already attached to the outside of the box.
    Don’t use the kit if any of these is missing or damaged. Get in touch with our customer care team and we’ll sort it out.

Microbiome Testing offers insights into your vaginal health that could help inform your reproductive, menopause or intimate wellness journey. The test measures the balance of beneficial and other bacteria in your vaginal microbiome, which can be valuable if you're interested in understanding your body's natural ecosystem or optimizing your vaginal health.

While this screening isn't routinely offered in standard clinics, it uses advanced technology to give you a detailed picture of your microbiome composition. This knowledge can empower you to make informed lifestyle choices and have more productive conversations with health professionals about your wellness goals.

If you're specifically concerned about acute symptoms or infections, we recommend visiting your healthcare provider for evaluation. They can advise whether additional testing would be beneficial for your individual situation.


Tampons can potentially stretch or tear the hymen, but it's not a guaranteed or common occurrence. The hymen is a thin membrane that partially covers the opening of the vagina in some individuals. It can vary in thickness and elasticity from person to person. When inserting a tampon, if done carefully and gently, it typically shouldn't cause  damage to the hymen. However, if a person's hymen is particularly thin or if they have a medical condition called imperforate hymen (where the hymen completely covers the vaginal opening), there is a slightly higher chance of the tampon causing some stretching or tearing.

It's important to note that the hymen can naturally stretch or tear over time due to various activities such as physical activity, horseback riding, gymnastics, or even normal vaginal development. Sexual activity can also impact the hymen, but it's not the only factor in hymen integrity. In many cultures, there is a misconception that an intact hymen is a sign of virginity, but this is not a reliable indicator. Hymens can vary greatly in appearance and resilience, and not all individuals with intact hymens have never engaged in sexual activity.


We recommend avoiding the use of the tampon for vaginal diagnostics for a period of six weeks following vaginal birth. This allows ample time for the body to heal and reduces the risk of potential complications. Please consult with your healthcare provider for guidance specific to your individual situation.


In addition to the postpartum period, we advise against using the tampon if you have any open wounds, sores, or other vaginal irritations. It is essential to prioritize your comfort and well-being, and if you have any concerns, please consult your healthcare provider.


If you experience any discomfort, unusual symptoms, or adverse reactions while using the tampon for vaginal diagnostics, we recommend removing it immediately and consulting with your healthcare provider. Your health and safety are our utmost priority, and it is essential to address any concerns promptly.


Our Vaginal Microbiome Testing specifically detects the relative abundance of Lactobacilli and Anaerobic bacteria as a percentage of all bacteria in the sample. Very high levels of Lactobacilli (>80% of all bacteria) are generally associated with a healthy, balanced microbiome. Increased levels of anaerobic bacteria, such as Gardnerella, Porphyromonas and Prevotella spp. may suggest a disbalanced microbiome, which increases the susceptibility to infections, like bacterial vaginosis (BV). While our screening offers valuable information, it is essential to remember that these results are not diagnostic.


No, our coaches cannot diagnose conditions or prescribe medications. While they can help interpret your screening results and provide guidance on vaginal health, you'll need to consult a healthcare provider for diagnosis and treatment of any medical conditions.


All Daye products are now FSA and HSA reimbursable!

Flexible Spending Accounts (FSAs) and Health Savings Accounts (HSAs) are smart ways to save on healthcare expenses. FSAs are employer-sponsored accounts that let you use pre-tax dollars for medical costs, typically with a "use-it-or-lose-it" policy within the plan year. HSAs, available for those with high-deductible health plans, offer more flexibility as funds roll over annually and can serve as a long-term health savings tool.

Using these accounts for Daye products brings multiple benefits: you'll enjoy tax savings, can better budget for health expenses, and get immediate savings on your purchases. It's simple to take advantage of – just pay with your FSA/HSA card at checkout or submit your Daye receipt for reimbursement.


Daye makes it easy to use your Flexible Spending Account (FSA) or Health Savings Account (HSA) funds for our health-conscious products. At checkout, simply select the "Flex | Pay with HSA/FSA" option. Then, enter your FSA or HSA card details and complete your purchase as you normally would.

For certain items classified as "dual use" an additional step may be required. These products sometimes need verification of eligibility for FSA/HSA spending. In such cases, you'll be guided through a brief telehealth consultation via chat. This quick process ensures compliance with FSA/HSA regulations while allowing you to access the full range of Daye's offerings.

Whether you're purchasing our organic period care, Diagnostic Tampons, or virtual consultations, you're making a tax-advantaged investment in your personal care. By streamlining the FSA/HSA payment process, Daye aims to make your journey to better health as smooth and accessible as possible.


In this case, you have added a subscription product to your cart, which we currently don't support along with the HSA/FSA payment platform. Reach out to support@yourdaye.com if you think there is an error and we will resolve the issue on your behalf.


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Relevant Research

Diagnosis of bacterial vaginosis on self-collected vaginal tampon specimens

2002 • P D J Sturm, P Moodley, G Nzimande

Results of the tampon and vaginal smears showed excellent agreement for both observers (Spearman >0.80). The overall sensitivity and specificity were 91.7% (95% CI: 81.6-96.5) and 79.3% (95% CI: 67.2-87.8), respectively, using the Amsel criteria as reference standard. The tampon provides a specimen for the combined diagnosis of non-ulcerative STIs and BV.

A Self-Administered Technique for the Detection of Sexually Transmitted Diseases in Remote Communities

1997 • Sepehr N. Tabrizi, Barbara Paterson, Christopher K. Fairley, Francis J. Bowden, Suzanne M. Garland

The detection of each organism was significantly greater by PCR in tampon-collected samples than by routine conventional methods (P < .01).

Pilot study of the utility and acceptability of tampon sampling for the diagnosis of Neisseria gonorrhoeae and Chlamydia trachomatis infections by duplex realtime polymerase chain reaction in United Kingdom sex workers

2010 • P T Kimmitt, S N Tabrizi, M Crosatti, S M Garland Frcpa, P C Schober, K Rajakumar, C A Chapman

Besides near-universal acceptability of tampon sampling, the tampon sampling–PCR approach described in this study appeared to have enhanced sensitivity compared with conventional testing.

Vaginal microbiome and sexually transmitted infections: an epidemiologic perspective

2011 • Rebecca M. Brotman

Vaginal bacterial communities are thought to help prevent sexually transmitted infections. Bacterial vaginosis (BV) is a common clinical syndrome in which the protective lactic acid-producing bacteria (mainly species of the Lactobacillus genus) are supplanted by a diverse array of anaerobic bacteria. Epidemiologically, BV has been shown to be an independent risk factor for adverse outcomes including preterm birth, development of pelvic inflammatory disease, and acquisition of sexually transmitted infections. Longitudinal studies of the vaginal microbiome using molecular techniques such as 16S ribosomal DNA analysis may lead to interventions that shift the vaginal microbiota toward more protective states.

The Vaginal Microenvironment: The Physiologic Role of Lactobacilli

2018 • Emmanuel Amabebe, Dilly O. C. Anumba

Lactobacilli and their antimicrobial and anti-inflammatory products along with components of the epithelial mucosal barrier provide an effective first-line defence against invading pathogens including bacterial vaginosis, aerobic vaginitis-associated bacteria, viruses, fungi and protozoa. An optimal host-microbial interaction is required for the maintenance of eubiosis and vaginal health.

The role of Escherichia coli in reproductive health

2017 • P Cools

Vaginal dysbiosis has been associated with increased susceptibility to and transmission of HIV and other sexually transmitted infections and increased risk of pelvic inflammatory disease, preterm birth and maternal and neonatal infections.

Pregnancy's Stronghold on the Vaginal Microbiome

2014 • Marina R. S. Walther-António, Patricio Jeraldo, Margret E. Berg Miller, Carl J. Yeoman, Karen E. Nelson, Brenda A. Wilson, Bryan A. White, Nicholas Chia, Douglas J. Creedon

Our analyzes indicate normal pregnancy is characterized by a microbiome that has low diversity and high stability. While Lactobacillus species strongly dominate the vaginal environment during pregnancy across the two studied ethnicities, observed differences between the longitudinal dynamics of the analyzed populations may contribute to divergent risk for pregnancy complications. This helps establish a baseline for investigating the role of the microbiome in complications of pregnancy such as preterm labor and preterm delivery.

The vaginal microbiome as a tool to predict IVF success

2020 • Sam Schoenmakers, Joop Laven

The vaginal composition prior to the start of hormonal treatment for ART seems to be predictive of in vitro fertilization/in vitro fertilization-intracytoplasmic sperm injection (IVF/IVF-ICSI) outcome, with mainly a highly negative predictive value.

Early pregnancy vaginal microbiome trends and pre-term birth

2017 • Molly J. Stout, Yanjiao Zhou, Kristine M. Wylie, Phillip I. Tarr, George A. Macones, Methodius G. Tuuli

In a predominantly African-American population, a significant decrease of vaginal microbial community richness and diversity is associated with preterm birth. The timing of this suppression appears early in pregnancy, between the first and second trimesters, suggesting that early gestation may be an ecologically important time for events that ordain subsequent term and preterm birth outcomes.

The role of the vaginal microbiome in gynaecological cancer

2017 • M Champer, A M Wong, J Champer, I L Brito, P W Messer, J Y Hou, J D Wright

Human microbiome research has shown commensal bacteria to be a major factor in both wellness and disease pathogenesis. Interest in the microbiome has recently expanded beyond the gut to include a multitude of other organ systems for which the microbiome may have health implications. Here, we review the role of the vaginal microbiome in health and disease, with a particular focus on gynecologic malignancies. Further, we suggest that it may be possible to expand the use of probiotics in the treatment of gynecological cancers.

Association between polycystic ovary syndrome and the vaginal microbiome: A case-control study

2020 • Xiang Hong, Pengfei Qin, Kaiping Huang, Xiaoling Ding, Jun Ma, Yan Xuan, Xiaoyue Zhu, Danhong Peng, Bei Wang

There was significant difference in vaginal bacterial structures between PCOS and healthy control women. The relative abundance of Lactobacillus crispatus in the PCOS group was significantly lower than controls (P = .001), and the relative abundance of Mycoplasma and Prevotella was higher than controls (P < .001, P = .002, respectively). The Mycoplasma genus could be a potential biomarker for PCOS screening, as ROC analysis showed that the area under the curve (AUC) for the relative abundance of Mycoplasma was 0.958 (95% CI: 0.901-0.999).

Menstrual Tampons Are Reliable and Acceptable Tools to Self-Collect Vaginal Microbiome Samples

2023 • Florence Turner, Josephine Drury, Dharani K Hapangama, Nicola Tempest

Many women report embarrassment as the cause for their avoidance of routine gynecological screening appointments. Methods of self-collection of bio samples would perhaps encourage women to participate in routine screening programs. The vaginal microbiome plays a key role in women's health and reproductive function. Microbial disturbances can result in the loss of lactobacillus dominance, also known as dysbiosis, associated with an increased risk of contracting sexually transmitted infections (STIs), pregnancy complications and infertility. All (100%) of volunteers were happy to provide a tampon as a sample for testing. The findings from this study show that tampons and LVSs were comparable when analyzing the vaginal microbiome, with potential superiority of the tampon with regard to patient acceptability.

Daye tampons are manufactured in accordance with medical device standards, including ISO13485 and GMP. In order for a diagnosis to be confirmed, test results from the Diagnostic Tampon should be considered by a licensed healthcare provider alongside a patient's symptoms and medical history. Like every other diagnostic test, lab results are not sufficient for a diagnosis. Daye offers customers the option to connect with independent CQC-regulated healthcare providers virtually and in-person for a confirmed diagnosis. All prescriptions and treatments provided through the Daye platform are issued by third-party, independent pharmacists, who are also regulated under CQC and GPhC.