How Path Works | Path Fertility
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How Path Works

Path is an easy, mail-in kit for advanced sperm quality testing. Gain the reassurance to move forward with natural or assisted conception. 
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It all starts with your biological sperm age.

Your “True” Paternal Age.

Path is an informational product only. For medical advice, talk to your doctor.

  1. When sperm is received in our laboratory it is counted and purified to remove any contamination. The purity of the sperm is crucial for accuracy of the analysis.

  2. After purification, sperm DNA is isolated from the sperm cells. All RNA is removed from the sample leaving pure sperm DNA.

  3. Our sperm age calculation is based on changes in your sperm DNA that accumulate as you age.

  4. To identify your sperm age (“true” age) your sperm’s DNA is put through two processes to identify important sites on specific genes associated with sperm age.

  5. Your sperm DNA is then analyzed and compared to a large set of population data to conclude your sperm age.

Answer questions about your lifestyle.

Your habits and experiences can change your health, your fertility, and even your DNA.

Understanding the answer to these questions is important to understanding what you can do with your Path results.

Do you smoke? How often?

How often do you exercise? What’s your diet like?

Does your work expose you to radiation or toxins?

Input your family goals.

You, or you and your partner can think through your family goals, and you’ll receive a personalized family planning timeline.

When do you want to start trying?

How many kids would you like?

If you decide to change your goals, your Path timeline will change too.

Path Test Results

Path combines your sperm test results with questions about your life, and your goals.

Chronological Age

You’ll tell us how many years since your birth.

Biological Age (“true” age)

Your sperm test results will tell you how old your sperm is acting – your “true” age.

Personalized Timeline

We’ll combine your two ages with a timeline highlighting age associated fertility risks.

Layer in Your Lifestyle

Then we add in your lifestyle factors to help you optimize sperm health and reach your goals.

View Sample Report

Trusted by Fertility Experts

“The more you know, the better things will go. Path helps my patients know more before their fertility journey.”

Dr. Aimee Eyvazzadeh
Reproductive Endocrinology & Infertility Specialist

“I wish my patients knew their sperm age – this would be valuable to know in counseling men about current fertility issues or sperm banking for future fertility.”

Dr. Paul Turek
Male Fertility Specialist

Get a Sample Path Report 

Signup for updates and receive your free sample Path report.


Sperm Age Science

DNA methylation sperm age prediction is accurate. Check out the peer-reviewed publication.

Learn More
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