What is in the Kit?
What’s Inside the Box
Every YO Kit includes standardized, high-quality components that ensure accurate, at-home semen testing for your patients with results your clinic can trust.
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
MES INSTALLED ANALYZERS
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TESTS USING MES SYSTEMS
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COUNTRIES USING MES SYSTEMS
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Why Doctors Trust YO
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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.
