Organ donation & transplant resources
The United Network for Organ Sharing (UNOS) is a nonprofit organization that for more than 40 years has helped manage the Organ Procurement and Transplantation Network (OPTN) under contract with the federal government.
A unique public-private partnership, the OPTN links all professionals involved in the U.S. donation and transplantation system. The OPTN website offers a wide range of information and resources on organ donation and transplant for professionals, patients and the general public. This page will provide you with direct links to OPTN content for your convenience.
Spotlight: 2-minute reads
Tales from the OR and how Congress can help
UNOS Chief Medical Officer Dr. Andrew Klein shares first-hand experiences as a liver transplant surgeon, and how Congressional action can help strengthen the system.
Waitlist deaths decrease under UNOS’ operation of nation’s organ system
The average number of people dying per day waiting for a transplant has dropped under UNOS’ operation of the U.S. organ donation and transplant system.
Transforming transplant program operations with data-driven tools
UNOS offers best-in-class tools tailored to the needs of transplant programs.

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Kidney and pancreas
- About kidney transplants
- Understanding and calculating:
- About pancreas transplants


Liver and intestine
- About liver transplants
- About intestine transplants


More resources
- Learn about living donation.
- Learn how the OPTN makes donation and transplant policy.
- Learn how you can help shape donation and transplant policy through public comment.
Questions?
Patients, family members, and friends needing additional information about living donation and organ transplant, contact the OPTN Patient Services Line at 1-888-894-6361 or [email protected].

You can provide lifesaving organs to as many as eight people. Every registration counts.
Sign Up To Be An Organ Donor