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Find out what makes us the world's largest and most experienced reproductive tissue bank

Busque Su Donante

Bienvenido a Criobanco de California. Encuentre su donante hoy!

For Sperm Donors

Apply to become a sperm donor and help make dreams come true

Find Your Egg Donor

Search for egg donors with frozen eggs available for immediate use

For Egg Donors

Become an egg donor and help give the gift of family

Newborn Stem Cells

Bank your baby's newborn stem cells with CBR

Fertility Preservation

Cryopreserve your fertility with sperm, egg, and embryo storage

Our shipping partners are experiencing delays due to weather and staffing shortages due to COVID-19.

Our shipping partners are experiencing delays due to weather and staffing shortages due to COVID-19.

Genetic Services

Our in-house team of experienced genetic counselors have graduate degrees and clinical training in medical genetics and counseling. They handle client questions, donor screening, medical updates, and special testing requests.

Reasons to Contact our Genetic Counselors:

  • To ask questions about a donor's Genetic Test Summary (GTS) or family medical history
  • For assistance selecting a donor if you have a positive genetic test result or a family history of a particular genetic disorder
  • To find out if CCB has received any updates about your donor's family medical history since he completed his profile
  • To inform us if your donor-conceived child has any medical problems
  • You need to request special testing on a donor

Contact our genetic counselors by calling 877-743-6384 from 8:00am to 5:00pm Pacific Time, Monday through Friday.

Donor Screening: Genetic Evaluation

The goal of our genetic evaluation is to reduce the risk for significant medical problems in the donor's offspring. If a donor applicant is considered to have an increased risk for having offspring with significant health problems, above the general population risks, he is disqualified from becoming a California Cryobank donor. PLEASE NOTE: There is a 3% - 4% chance that a child will be born with a health problem that cannot be predicted or tested for prior to pregnancy regardless of the screening performed, but we attempt to reduce the risks through these comprehensive evaluations:

Family Medical History
Our genetic counselors critically analyze donor applicants and their family medical histories during a genetic interview. Learn how this information is collected and reviewed.

View Donor Screening: Genetic Evaluation FAQs

Genetic Testing
Genetic Testing is performed on our donors to evaluate the risks for specific disorders in the donor's offspring. Our DNA Advantage Donors are screened for over 260 recessive conditions! Learn how this information can help you plan your pregnancy.

Learn More

We strongly recommend that you download your donor's family Medical History and Genetic Test Summary (GTS) and discuss them with your personal healthcare providers before you ship your vials. Both items are available free of charge and can be found on your donor's profile page.

Donor Updates: What happens when new medical information is received about a donor or his offspring?

Our genetic counselors evaluate all medical issues and updates received about a donor's personal or family medical history or an offspring's medical history.

Donor Updates
All donors are asked to inform us of changes in their personal or family medical histories that occur after they have retired from our program so that we can make this available to clients and donor-conceived persons for their medical records. Clients are welcome to contact the Genetics Department to learn of any updates on their donor as they may want to include them as part of their child's medical records. Our team may also notify you about significant donor updates if the information could be relevant for management of your child's health.

Offspring Updates
All clients are asked to inform California Cryobank if their child or fetus has a significant medical problem. One of our genetic counselors creates a confidential report and reviews the information along with all other medical history for that donor to determine the appropriate management. You can report a medical problem by calling our genetic counselors at 877-732-6384 or online.

Learn More

FAQs: Have questions related to genetics and our donor screening practices?

Read answers to some frequently asked questions about genetic testing, donor screening, and more.

Learn More


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National averages range from 3-4 insemination cycles per successful pregnancy. We recommend purchasing at least 5 vials per child to guarantee your donor remains available until reaching your personal family goals. Additionally, you get 1 Year FREE storage if you purchase 4 or more vials ($475 value).


Our donors sell out and retire quickly! We have thousands of clients forced to choose between a new donor or not having a second child because they chose not to store vials for future use while they were available. To help you plan for your future, we offer 3 Years FREE storage if you purchase 3 Years+ vials ($1,050 value) - as well as the ability to sell back any unused vials that have not left our control.