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The Fellow Semen Analysis and Vasectomy Test kits
The Fellow Semen Analysis and Vasectomy Test kits

Fellow tests

Fellow tests

Fellow's mail-in tests support men at every stage of the reproductive journey.

Fellow's mail-in tests support men at every stage of the reproductive journey.

Fellow's validation paper showing the clinical accuracy of our method, alongside a study demonstrating that Fellow drives industry-leading compliance with post-vasectomy semen analysis.
Fellow's validation paper showing the clinical accuracy of our method, alongside a study demonstrating that Fellow drives industry-leading compliance with post-vasectomy semen analysis.
Fellow's validation paper showing the clinical accuracy of our method, alongside a study demonstrating that Fellow drives industry-leading compliance with post-vasectomy semen analysis.

The science behind our tests

The science behind our tests

Fellow testing was created and validated with leaders in men’s reproductive health, making our flagship semen analysis the only diagnostic-grade mail in test on the market.¹

Fellow testing was created and validated with leaders in men’s reproductive health, making our flagship semen analysis the only diagnostic-grade mail in test on the market.¹

Two professionals stand in front of a research poster presented by Fellow
Two professionals stand in front of a research poster presented by Fellow
Two professionals stand in front of a research poster presented by Fellow

Peer-reviewed research

Peer-reviewed research

With over 215,000 samples processed to date, we are moving reproductive health forward by powering novel, large-scale research.

With over 215,000 samples processed to date, we are moving reproductive health forward by powering novel, large-scale research.

3,000+ clinics trust Fellow.

Developed by experts

Fellow's tests were created and validated with leaders in men’s reproductive health.

Developed by experts

Fellow's tests were created and validated with leaders in men’s reproductive health.

Developed by experts

Fellow's tests were created and validated with leaders in men’s reproductive health.

Optimized for patients & customers

Fellow tests are convenient, affordable, fast, and provide easy-to-understand results.

Optimized for patients & customers

Fellow tests are convenient, affordable, fast, and provide easy-to-understand results.

Optimized for patients & customers

Fellow tests are convenient, affordable, fast, and provide easy-to-understand results.

Clinical-grade quality

Our CLIA-certified lab and clinically validated tests allow us to provide results on par with in-person semen analysis.¹

Clinical-grade quality

Our CLIA-certified lab and clinically validated tests allow us to provide results on par with in-person semen analysis.¹

Clinical-grade quality

Our CLIA-certified lab and clinically validated tests allow us to provide results on par with in-person semen analysis.¹

  1. Samplaski et al. Development and validation of a novel mail-in semen analysis system and the correlation between one hour and delayed semen analysis testing; Fertil Steril. 2021;115(4):922-929