How YO Works

Power of YO

YO uses a smartphone-powered app and device to deliver fast, clinical-grade semen analysis directly from home. Patients receive accurate results with a live sperm video, while clinics and labs gain a scalable solution to expand fertility care.

Simple Steps to Fertility Insights

Step 1

Connect YO Device

Step 2

Mix Powder

Step 3

Collect Sample into Pipette

Step 4

Insert Sample into Slide

Step 5

Insert Slide into Device

Step 6

View Results on App

How YO Works for Clinics

YO helps clinics expand services, increase revenue, and engage more patients, without adding workload.

Wholesale model adds revenue beyond in-office testing.

Private, at-home testing encourages more patients to begin care.

Results naturally drive return appointments and ongoing physician involvement.

Encrypted reports & videos support faster, clearer patient conversations.

What’s in the Kit

Each YO Kit includes everything your patients need for accurate, at-home semen analysis. No clinic visit or prescription required.

YO Device

Smartphone-powered analyzer that connects to the YO App for testing and data capture.

Testing Slides & Collection Tools

Disposable slides, pipettes, sample cups, and powder solution for clean, consistent preparation.

Guided YO App

Step-by-step digital instructions with real-time feedback and video playback.

Three Complete Tests

Allows patients to confirm results over time or track improvement after treatment or lifestyle changes.

What YO Reports

YO provides clinical-quality data that mirrors in-lab testing, ensuring physicians can rely on results for informed guidance.

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.

Why Our Clients Love YO

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.

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.