What is the YO Home Test Kit?

YO Home Sperm Test is an FDA-cleared device that delivers clinical-grade semen analysis from the privacy of home, no lab visit or prescription required. Through the YO App, patients receive fast results and even a live sperm video.

Why Offer YO?

Expand fertility services without adding equipment or lab staff.

Offer patients an FDA-cleared, private testing option they trust.

Deliver WHO 6th Edition–compliant results that meet clinical standards.

Partner with MES, 25 years of semen analysis expertise.

How YO Works

Designed for Patients, Built for Clinics

With a few simple steps, patients collect, test, and review results from home. Saving your team time while keeping them engaged in their fertility care.

Each kit includes everything needed for semen collection in the privacy of home. No clinic visits, no waiting rooms, no discomfort.

The YO App (iOS & Android) walks users through each phase, from sample preparation to testing, ensuring accurate, consistent results every time.

In under 20 minutes, patients receive WHO 6th Edition–aligned results on their smartphone, mirroring key parameters used in fertility labs.

YO provides live sperm video playback for easy visualization and includes multiple tests per kit allowing patients to track progress or confirm results over time.

For Clinics

Expand your fertility services with an FDA-cleared, at-home semen testing solution that delivers WHO 6th Edition–aligned results in minutes while saving valuable clinic time.

Built for Clinics. Designed for Partners.

YO makes it easy for both clinics and affiliates to expand services, reach new audiences, and grow revenue together.

For Affiliates

Earn revenue by promoting the trusted, FDA-cleared YO Home Sperm Test, with competitive commissions, marketing resources, and global brand credibility.

The YO Advantage: Technology, Trust & Time Savings

Insights in Minutes

YO delivers actionable, WHO 6th Edition–aligned semen analysis results in under 20 minutes for faster patient review and clinical decisions.

Certified Clinical Accuracy

FDA-cleared, CE-marked, and 97% accurate, YO provides lab-quality results that physicians and patients can trust.

Trusted Leader in Male Fertility Testing

Backed by MES’s 25+ years of innovation, YO brings proven, clinic-grade semen analysis technology to practices worldwide.

Step-by-Step Guidance Made Simple

The YO App walks patients through every step, reducing errors and ensuring consistent, reliable results for review.

Customizable Report Sharing

Encrypted PDF reports can be securely shared or stored, giving clinics easy, confidential access to patient data.

Unique Video Playback – See Sperm in Action

YO provides live sperm videos that enhance patient engagement and support meaningful clinical discussions.

What YO Reports

YO delivers comprehensive, WHO 6th Edition–aligned semen analysis results directly through the YO App, the same key parameters used in professional fertility labs for reliable clinical assessment.

Concentration

Total number of sperm per milliliter of semen.

Sperm Motility

Percentage of sperm that are alive and moving.

Progressive Motility

Percentage of sperm moving actively forward.

MSC/PMSC

Combined total of motile and progressive sperm.

Expert Opinions

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.”

“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.”

“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.”

“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.”

“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.”

“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.”

“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.”

Support

Have questions about your YO test? Explore step-by-step guides, FAQs, and troubleshooting tips in our Support Center.

Company

YO is developed by MES, a global leader with 25+ years in automated semen analysis and fertility diagnostics.

Partner With YO

Connect with our team to offer YO kits to offer YO kits at your clinic or learn about wholesale opportunities and support options.