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

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.