Choose your kit

Sperm testing solutions to meet your needs, whether you're struggling to conceive or just interested in understanding your sperm quality.

  • Easy, home-to-lab sperm analysis
  • Discreet delivery within 24-72 hours
  • Trusted by leading health providers
Easy, home-to-lab sperm analysis
Discreet delivery within 24-72 hours
Trusted by leading health providers

AI Analysis

Key sperm metrics Mojo analyses

Total sperm number

The total sperm number represents the quantity of sperm within a semen sample. An elevated sperm number enhances the prospects of natural conception and amplifies the efficacy of fertility treatments

Sperm concentration

Sperm concentration defines the quantity of sperm per milliliter of semen. This serves as a cornerstone of male fertility assessment, with elevated concentrations bolstering the likelihood of successful conception


The volume of semen refers to the total fluid, encompassing sperm, expelled during ejaculation. Optimal volume increases the likelihood of sperm successfully reaching and fertilising the egg.


Sperm motility refers to the capability of sperm to navigate forward effectively. Enhanced motility increases the prospects of fertilisation. Diminished motility may signify underlying medical concerns or challenges in sperm development.


Sperm morphology refers to the shape and size of sperm, which is important for successful fertilisation of an egg. Abnormalities in morphology may indicate genetic issues or poor sperm development.

Additional sperm metrics

In addition to these metrics, our Advanced Testing Kit evaluates a comprehensive array of sperm metrics, encompassing factors like pH, viscosity, aggregation & agglutination. IgA and IgG antibodies tests are also performed when relevant.


Trusted by 4,000+ people like you

Alex Wortley

Verified customer

I found the Mojo experience seamless from start to finish, it's night and day when compared to an in clinic experience and cheaper too. I took this test to reassess existing issue I already knew I had, just to check where i'm at ahead of a potential second fertility journey.

Sophie & Lee

Verified customer

A really convenient and much more comfortable way to check in on my sperm health. I felt more relaxed using this kit than going to a sperm clinic and was much happier with how I received my sperm results. Highly recommend as a way to manage and check in on your sperm health.

Dara Tah

Verified customer

My friend and I were curious about our fertility, it's something every guy jokes about when they are younger but we thought let's actually get tested. Mojo was the no-brainer solution to doing it. They make it SUPER easy
At your convenience

Get it all done without leaving the comfort of your home

Swift, cost-effective and comfortably discreet – Mojo, where speed meets affordability and awkwardness takes a backseat to convenience.

Reasons to choose us

Why choose Mojo?

Fertility clinics
DIY tests
Clinical-grade testing (incl. morphology)
CE-certified analysis and WHO-compliant results
Minimal usability error
Results after test
48 hours
Several weeks
15 min
Prescription required?
Referral needed
Consultation with a male fertility expert
Doctor-guided sperm improvement plan


Have questions? We have answers.

Couldn’t find your answer? Email us at

Mojo's at-home semen analysis is a test kit that evaluates up to 22 key biomarkers to assess sperm health and fertility potential. It is designed to be convenient, affordable, and accessible for men who want to monitor their sperm quality and take proactive steps to improve their chances of achieving a successful pregnancy.

Mojo's at-home semen analysis evaluates 22 key biomarkers to provide a comprehensive assessment of sperm health. Some of the key parameters we measure include:

  • Semen volume: The amount of semen produced during ejaculation
  • Sperm concentration: The number of sperm present in one milliliter of semen
  • Sperm motility: The percentage of sperm actively moving
  • Total motile sperm count: The total number of motile sperm in the sample
  • Sperm morphology: The size and shape of sperm

Our analysis covers all 22 biomarkers established by the World Health Organization to provide accurate and reliable results. With Mojo's at-home semen analysis, you can monitor your sperm quality and take proactive steps to improve your chances of achieving a successful pregnancy. Our analysis is not only convenient but also highly accurate, with a 97% accuracy rate.

Since the 1930s, fertility specialists have developed and standardized the sperm analysis test to assess sperm quality, which is crucial in determining fertility issues. The World Health Organization (WHO) has established standards for the test, including 22 biomarkers that measure key sperm markers such as semen volume, sperm concentration, total number, motility, and morphology.

While the sperm analysis test is not a direct measure of fertility, it can provide valuable information on the likelihood of achieving a pregnancy and serves as a starting point for further investigations. Mojo's at-home sperm test includes all the key biomarkers and thresholds set by the WHO to evaluate sperm quality accurately.

In case of any abnormalities detected by the test, our team of fertility experts can offer personalized advice to improve sperm quality and identify any underlying problems that may be impacting fertility.

Mojo's at-home sperm test uses a special transport media that protects and extends the life of your sperm during shipping. To return your sample to our lab, simply follow these steps:

  1. Package and return your kit: Use the packaging materials included in your kit to package your semen sample in the original shipping box. You can then schedule a same-day pick-up for your sample to be mailed overnight through one of our shipping partners or drop it off at a participating location.
  2. Analyze your sample: Once we receive your sample at our London hubs, our qualified fertility clinicians analyse it according to the WHO guidelines using a CE-certified and peer-reviewed AI-powered microscope. Our kit is designed to protect your sperm's quality for up to 48 hours, and we conduct a full test on arrival to ensure everything went smoothly in transportation.
  3. Get your results: Your results will be available on your online dashboard within 48 hours. If you choose the consultation option, you can schedule a video call with a fertility specialist to review your results and discuss how they relate to your fertility. All your information remains anonymised via your CLIENTID and lives on HIPAA-, GDPR-compliant servers.

Studies have shown that repeat and frequent ejaculation leads to the release of competent sperm that have not been stored in the testes for long enough.

To ensure the sperm analysis results can be assessed against existing data and reports relating to sperm function or pregnancy, the sperm sample should be collected after a minimum of 2 days and a maximum of 7 days of sexual abstinence. This ensures that advice can be given on chances of pregnancy, further testing/investigation, or type of assisted conception if that is needed.

If repeat analyses are required, the number of days since the last ejaculation should be as constant as possible at each visit.

Mojo's at-home male fertility test is the only thorough male fertility test you can take from the comfort of your home to test your sperm health.

The Mojo male fertility sperm test is designed for people with sperm who want to understand their fertility and have peace of mind when trying to start their family.

This test is equivalent to taking a test with a fertility clinic - without leaving your home and awkward waiting rooms, sample cup in hand. It is an easy way to test, understand and - if needed - improve your sperm at an affordable price.

Thanks to Mojo's proprietary AI technology that has been developed in compliance with WHO standards and with the scientific team that co-developed these standards, you get 97% accurate results in 48h.

The test results are easy to understand and cover the essential parameters that are clinically and scientifically required to assess your ability to conceive.

The sperm test is accompanied by a free online consultation with one of the UK’s top fertility experts with 30 years of experience helping couples with male fertility challenges to conceive naturally.