YO Home Sperm Test offers a private, doctor-recommended way to check sperm quality from the comfort of home—no lab visit required. FDA-cleared and over 97% accurate, it delivers a Motile Sperm Count, YO Score, and live video of sperm movement, all through your smartphone.
- Discreet and convenient testing option
- Easy to use with step by step instructions
- Works with most iPhones and Android devices for fast, easy results

Kit Includes:
- YO Wi-Fi Device (for up to 50 tests)
- 3 Collection Cups
- 3 YO Slides
- 3 Pipettes
- 3 Liquefaction Vials
- Instructions
Simple Steps to Fertility Insights
Step 1:
Connect YO Device
Step 2:
Mix the Powder
Step 3:
Collect Sample Into Pipette
Step 4:
Insert Sample Into Slide
Step 5:
Insert Slide into Device
Step 6:
View App Results

Trusted by Labs, Loved by Families
Our commitment to excellence has garnered the trust of esteemed organizations such as US Fertility, Kaiser Permanente, LabCorp, the US Military, and numerous others. Their reliance on MES speaks volumes about the accuracy and reliability of our products, the quality of our reported results, and our dedication to high-quality client support.
What YO Reports

Concentration
YO reports the number of sperm cells in your semen sample (per mL)

Motility
Motility is the percentage of your sperm cells that are alive and moving (%)

Progressive Motility
Progressive Motility is the percentage of sperm cells that make forward progress (%)

MSC/PMSC
Motile and Progressively Motile sperm represented as a total (per mL)

YO is Future Proof
The World Health Organization (WHO) publishes comprehensive guidelines for male fertility testing and treatment. Medical Electronic Systems (MES) and YO Home Sperm Test adhere to the latest WHO standards, as outlined in the current 6th Edition Manual.