Guide | Only 4% of Men Complete the Sperm Donation Process: Study Explains Why
A study found that only about 4% of men who apply to become sperm donors in the United States and Denmark complete all screening and reach the sperm-freezing stage for use in medically assisted reproduction. The study provides the first systematic public account of screening standards and processes within the sperm-bank industry and highlights the growing shortage of donors.
Guía | Un estudio analiza por qué pocos hombres completan la donación de esperma
Professor Pacey said that although the 4% completion rate may appear low, it did not surprise him. He previously operated a small sperm bank in the United Kingdom, where fewer than 4 in every 100 applicants passed all screening. He emphasized, however, that the low acceptance rate should not discourage men who are interested in donating: "Sperm banks always need a steady supply of new applicants."
The study analyzed all men who applied to the internationally known sperm bank Cryos International in the United States and Denmark between 2018 and 2019, a total sample of 11,702. Although most completed online registration or an initial semen test, most did not continue through later stages. Reasons included poor sperm quality after freezing, self-reported health problems, unsuccessful infectious-disease screening, or not meeting genetic screening criteria.
Dr. Michael Thomas, president of the American Society for Reproductive Medicine (ASRM) and chair of the Department of Obstetrics and Gynecology at the University of Cincinnati Medical Center, was surprised by the figure. "4% is extremely low, far below the 20%-30% acceptance rate I previously told potential donors," he said. This suggests that leading sperm banks now apply increasingly strict criteria and that donation is no longer as simple as a college student walking in to earn fifty dollars for beer.
The study also found that identity-release donors were more likely to complete the process: 4.7% did so, compared with 3.2% of anonymous donors. Pacey said it was encouraging that some men who initially chose anonymity agreed during the process to become identifiable. This is particularly important for patients in the United Kingdom, where the law gives donor-conceived children the right to learn the donor's identity in the future.
Completion rates also differed substantially by country: 6% of Danish men were ultimately accepted, compared with only 1% of U.S. men. Pacey hopes to investigate the cultural and procedural reasons for these differences. "Adapting the donation process to different countries may encourage more people to participate."
Información médica y reproductiva: consulte a un especialista en fertilidad para conocer los detalles del estudio.
Dr. Thomas added that another concern not specifically addressed in the study is that donors from racial and ethnic minority groups represent an even smaller share of applicants and have completion rates well below the overall 4%, making it more difficult for minority patients to find a matching donor.
Widespread commercial genetic testing through services such as Ancestry.com and 23andMe is also challenging the idea of anonymous sperm donation. Dr. Thomas said, "More donor-conceived people are using genetic testing to find relatives and ask questions about their genetic background." Many anonymous donors who once believed they would never be identified are now realizing that their identities may eventually be discovered.
Información médica y reproductiva: consulte a un especialista en fertilidad para conocer los detalles del estudio.
Información médica y reproductiva: consulte a un especialista en fertilidad para conocer los detalles del estudio.
Información médica y reproductiva: consulte a un especialista en fertilidad para conocer los detalles del estudio.
Autor LinkedIVF TeamPublicado 2025-05-08
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Guía | Solo 4% de los hombres completan el proceso de donación de esperma: un estudio explica por qué
Guide | Only 4% of Men Complete the Sperm Donation Process: Study Explains Why
A study found that only about 4% of men who apply to become sperm donors in the United States and Denmark complete all screening and reach the sperm-freezing stage for use in medically assisted reproduction. The study provides the first systematic public account of screening standards and processes within the sperm-bank industry and highlights the growing shortage of donors.
Guía | Un estudio analiza por qué pocos hombres completan la donación de esperma
Professor Pacey said that although the 4% completion rate may appear low, it did not surprise him. He previously operated a small sperm bank in the United Kingdom, where fewer than 4 in every 100 applicants passed all screening. He emphasized, however, that the low acceptance rate should not discourage men who are interested in donating: "Sperm banks always need a steady supply of new applicants."
The study analyzed all men who applied to the internationally known sperm bank Cryos International in the United States and Denmark between 2018 and 2019, a total sample of 11,702. Although most completed online registration or an initial semen test, most did not continue through later stages. Reasons included poor sperm quality after freezing, self-reported health problems, unsuccessful infectious-disease screening, or not meeting genetic screening criteria.
Dr. Michael Thomas, president of the American Society for Reproductive Medicine (ASRM) and chair of the Department of Obstetrics and Gynecology at the University of Cincinnati Medical Center, was surprised by the figure. "4% is extremely low, far below the 20%-30% acceptance rate I previously told potential donors," he said. This suggests that leading sperm banks now apply increasingly strict criteria and that donation is no longer as simple as a college student walking in to earn fifty dollars for beer.
The study also found that identity-release donors were more likely to complete the process: 4.7% did so, compared with 3.2% of anonymous donors. Pacey said it was encouraging that some men who initially chose anonymity agreed during the process to become identifiable. This is particularly important for patients in the United Kingdom, where the law gives donor-conceived children the right to learn the donor's identity in the future.
Completion rates also differed substantially by country: 6% of Danish men were ultimately accepted, compared with only 1% of U.S. men. Pacey hopes to investigate the cultural and procedural reasons for these differences. "Adapting the donation process to different countries may encourage more people to participate."
Información médica y reproductiva: consulte a un especialista en fertilidad para conocer los detalles del estudio.
Dr. Thomas added that another concern not specifically addressed in the study is that donors from racial and ethnic minority groups represent an even smaller share of applicants and have completion rates well below the overall 4%, making it more difficult for minority patients to find a matching donor.
Widespread commercial genetic testing through services such as Ancestry.com and 23andMe is also challenging the idea of anonymous sperm donation. Dr. Thomas said, "More donor-conceived people are using genetic testing to find relatives and ask questions about their genetic background." Many anonymous donors who once believed they would never be identified are now realizing that their identities may eventually be discovered.
Información médica y reproductiva: consulte a un especialista en fertilidad para conocer los detalles del estudio.
Información médica y reproductiva: consulte a un especialista en fertilidad para conocer los detalles del estudio.
Información médica y reproductiva: consulte a un especialista en fertilidad para conocer los detalles del estudio.