Semen Analysis

Get the most complete fertility test for men.

  • Convenient. At-home, mail-in sperm test. Free shipping both ways.
  • Comprehensive. Doctor approved, easy-to-understand results.
  • Best-In-Class. Tens of thousands of semen samples processed in our CLIA-certified lab.
  • Doctor Approved
  • Privacy & Security Assured
  • CLIA Certified
  • Fast Results

Why get a semen analysis?

There’s many reasons why you may want a semen analysis:

  • A doctor recommended it for you
  • You're looking to pursue the first step in a fertility evaluation
  • You're trying to conceive
  • You're testing your vasectomy / reversal success
  • You're curious how your fertility is impacted by your overall health

Get your comprehensive results.

We analyze the most important sperm health factors to give you an understanding of your ability to conceive.

See a sample report

Provide a sample and tell us about yourself.

We test your sample in our secure & CLIA-certified biolab in California and write up a full report based on the results.

What we analyze in your sperm sample.

  • Volume

    Milliliters (mL) of your entire sample

    Volume refers to the amount of semen in your sample (measured in mL). Volume can fluctuate quite a bit depending on when you last ejaculated.

  • Concentration

    How many million sperm per mL

    Sperm concentration is the number of sperm per mL in a semen sample.

  • Count

    How many sperm are in your sample

    Sperm count is the total number of sperm in the entire sample. To determine the sperm count, sperm concentration is multiplied by the total volume of the sample.

  • Motility

    How your sperm are swimming

    Sperm motility refers to the percentage of sperm that are swimming in a sample. This is important in fertility because sperm need to swim to reach and fertilize an egg.

  • Total Motile Count

    How many sperm in your sample are swimming

    This is regarded as the most important factor for male fertility- it is the result of multiplying sample volume, concentration, and motility.

  • Morphology

    How your sperm are shaped

    Sperm morphology refers to the shape of your sperm. A typical sample only has about 4%-20% of normal shaped sperm cells. Shocking? Well, you’re making 1,500 per second, so there’s bound to be some errors!

Save your most fertile sperm for later.

We offer convenient and affordable cryopreservation (storage) of your sperm to protect your fertility for years to come. Your sperm gradually degrades with age, and can be greatly affected by your health and lifestyle.

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There's no comparison.

Traditional LabFellow

Average cost

Upwards of $500 or more




Provide your sample awkwardly in a clinic


Provide your sample in the comfort of your home


Wait for your doctor to send you your results

Your call

Get your results as soon as our CLIA-certified lab approves them
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Had gone to a clinic last time I was tested but this was much more convenient / comfortable for me to do at home and with Covid going on, feels ever safer! Thanks Fellow!
Planning to conceive in the future
Tested and protected.

Every sample is stored under lock and key in our state-of-the-art lab as it awaits analysis. Once a sample is analyzed, it is immediately destroyed.

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Your data is yours (and yours only).

We take your privacy seriously. Your results are kept anonymous, and are only shared with you (and with your doctor, if you choose).

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Questions? We've got answers.

About Semen Analysis with Fellow (for fertility testing)

Fellow’s mail-in semen analysis makes it easy for you to understand what's going on with your sperm health. If you’re trying to get pregnant, planning for the future, or just curious about your reproductive health, Fellow is an easy, comfortable, and cost-effective way to get information about your fertility. Not working with a doctor just yet? Fellow provides the only clinical-grade mail-in semen analysis available directly to consumers.
You'll need to produce your sample after you've been abstinent (meaning no sex, no masturbation, no ejaculation whatsoever) for a minimum of 48 hours, but a maximum of five days. This is because studies show that sperm health improves when you haven’t ejaculated for a couple of days, but declines as your sperm age inside the reproductive tract past day five. It’s also crucial that you ship your sample on a day when it will actually reach us overnight. This means researching where your local UPS Store is and dropping your sample off before the overnight shipping cutoff time (usually 3:00 or 4:00PM, but you should check) on a Monday, Tuesday, Wednesday, or Thursday. **(Please note: these requirements are different for Vasectomy Tests)**
Your kit must be shipped back on a Monday, Tuesday, Wednesday, or Thursday morning, and you must send it back the same day you produce your sample. This is important, because your kit