What is in the Kit?
What’s Inside the Box
Each YO Kit includes everything your patients need to complete accurate, at-home semen analysis. No clinic visit or prescription is required, making it easy for patients to test conveniently and privately from home.
YO Device
Smartphone-powered analyzer that connects to the YO App (iOS & Android) for guided, clinical-grade testing.
Complete Testing Supplies
Disposable slides, sample cups, pipettes, and solution. Designed for precise and consistent sample preparation.
Guided Instructions & App Access
The YO App walks patients through every step with real-time analysis, downloadable reports, and a printable PDF guide.
Three Complete Tests
Each kit includes 3 full tests, enabling patients to confirm results or monitor improvement over time.
Why the Kit Matters for Your Practice
Reduces Clinic Workload
Streamlines initial screenings so your team can focus on higher-level evaluations.
Lowers Barriers to Testing
Affordable and accessible for patients, while maintaining lab-level accuracy.
Drives Return Visits
Creates a reliable first step that naturally leads patients back for deeper analysis and treatment.
Improves Patient Engagement
Patients arrive informed and ready for meaningful, data-driven consultations.
Trusted. Proven. Reliable.
Backed by MES’s 25+ years of innovation, YO has powered over 15 million tests across 50+ countries, trusted by clinics, hospitals, and fertility specialists worldwide.
The Leader in Lab Semen Analysis
Why Our Clients Love YO
S S Vasan | MBBS, DNB
“YO addresses the unique problems of accuracy and privacy. It is a home kit that provides a precise assessment of Moving Sperm Concentration (MSC). Testing moving sperm is critical in a home test because, with a clear video to back it up, the results allow the man to approach the doctor with evidence of a problem. I see YO as a game changer in India and globally because of the profound need for a test of this type as a first step in the process of diagnosing and treating male factor infertility in a timely basis and also taking preventive steps.”
Abraham Lightman | MBBS, DNB
“From my perspective, a digital sperm test like YO that accurately reports Motile Sperm Concentration is an excellent screening tool for the consumer. When a couple arrives at my clinic with a YO result in hand and they can also show me a video that verifies the results, I can quickly assess if there is a male factor issue that requires investigation. I believe this motivates the couple to seek help earlier in the process and that’s very beneficial to both the doctor and the patient.”
Kenan Omurtag | MD
“YO is the first FDA approved smartphone based home sperm test that allows men and their partners to reliably screen sperm count and motility (moving sperm concentration) in the privacy of their own home.”
Stanton Honig | MD
“YO Sperm home testing has taken direct to consumer diagnostic testing to the next level. In the past, at home sperm testing could only evaluate sperm counts. YO Sperm evaluates motile sperm concentration which is a much more important way to test for a male problem. All patients with abnormal results should be evaluated by an M.D. specializing in reproductive medicine. Patients within a reasonable range should still be checked after one year with a formal sperm test as other parameters may be important.”
Katherine Betcher | MD
“An easy to understand, more private method of testing. Many of my patients’ husbands were more interested and willing to undergo testing with this method. I am comforted by the fact that it is backed up by the FDA and the ASRM, with an article in Fertility and Sterility.”
Natan Bar-Chama | MD
“A male contribution to infertility is common and should be assessed early on in a couple’s path to achieve parenthood. To enable a man to assess his motile sperm concentration in the privacy of his home, using the FDA approved YO home sperm test presents a significant opportunity for a couple to become more educated about their fertility potential.”
Dan Nayot | B.Sc., M.Sc., MD, FRCSC
“Providing men with easy to use, at home testing options is the future of how we address fertility challenges upstream from the fertility clinic. The YO Sperm Test enables earlier detection of potential sperm issues, allowing patient to pursue timely interventions and improve outcomes.”
How It Works
See how YO helps clinics expand services and keeps patients engaged with accurate, WHO 6th Edition–aligned results.
Company
YO is developed by MES, a global leader with 25+ years in automated semen analysis and fertility diagnostics.
