YO Home Sperm Test Kit

The YO Home Sperm Test uses a specialized optical device that converts your smartphone or computer into a microscope. The system analyzes a semen sample collected at home, evaluates sperm movement, and generates automated results based on how sperm behave during analysis.

The YO device provides a video of your moving sperm along with an automated assessment of five key fertility parameters.

Collect semen through ejaculation into the clean, provided container. Avoid using lubricants, standard condoms, or saliva during collection — these products contain spermicides that can kill or immobilize sperm, leading to falsely low motility results.

Follow the recommended abstinence period of 2 to 7 days before sample collection for the most representative results.

The YO Home Sperm Test takes approximately 30 to 45 minutes from sample collection to results. This includes a mandatory 20-minute liquefaction period where the sample reaches the right consistency, followed by a 2-minute automated analysis. Results are available immediately after analysis completes.

Yes. YO Home Sperm Test results can be affected by sample collection technique, timing, and how closely you follow the instructions. To ensure the most accurate reading, follow the recommended abstinence period (2–7 days) and wait for the sample to fully liquefy (about 20–30 minutes) before testing.

Unexpected or concerning results warrant repeat testing or confirmation with a clinical semen analysis.

The YO Home Sperm Test measures five semen parameters that indicate fertility potential:

Sperm concentration — total sperm count per milliliter. Motility — percentage of moving sperm. Progressive motility — percentage of sperm swimming in a forward direction. Motile sperm concentration (MSC) — number of moving sperm per milliliter. Progressive motile sperm concentration (PMSC) — number of forward-swimming sperm per milliliter, the sperm most likely to reach and fertilize an egg.

Motile sperm concentration (MSC) is often considered the most important number in male fertility. MSC measures how many sperm per milliliter are actually moving and capable of fertilization — a high total sperm count is less meaningful if the sperm are not motile.

Only motile sperm can reach and fertilize an egg, making MSC a stronger predictor of fertility than total count alone.

The YO Home Sperm Test shows over 97% agreement with laboratory methods for the parameters it measures. The device is FDA-cleared and uses computer vision technology to eliminate human error often found in manual microscope readings.

Results should be interpreted as screening data rather than definitive medical diagnosis.

The YO Home Sperm Test provides reliable baseline fertility screening from the privacy of your home when used as directed. However, it is not designed to replace a full laboratory semen analysis, which evaluates additional parameters such as morphology and white blood cell count.

No. The YO Home Sperm Test is not designed or FDA-cleared to confirm the absence of sperm following vasectomy. Post-vasectomy verification requires clinical laboratory testing using methods recommended by your healthcare provider to ensure complete sperm clearance.

A low or moderate YO Home Sperm Test result does not mean infertility. Sperm quality fluctuates based on stress, illness, heat exposure, and lifestyle factors. If you receive an abnormal result, wait 2 to 3 months, the time it takes for a new cycle of sperm to mature, and test again.

If results remain low after repeat testing, consult a urologist or fertility specialist for a comprehensive laboratory semen analysis.