Organ donation is a remarkable act where one person gives an organ or tissue to help another person survive or improve their quality of life. This life-changing process can happen after someone passes away, or in certain cases, while they are still living and healthy enough to donate safely.

Understanding the Gift of Organ Donation

Organ donation represents one of the most profound medical advances of our time, offering hope to thousands of people whose lives depend on receiving a healthy organ. The process centers on a simple yet powerful principle: taking a functioning organ from someone who no longer needs it and transplanting it into someone whose life depends on it. This can occur when someone dies and has previously agreed to become a donor, or when a living person voluntarily chooses to donate an organ or part of an organ to help someone in need.^[1]

The need for organ donors is immense and growing. In the United States alone, more than 100,000 people are waiting for a lifesaving organ transplant at any given moment. Despite this urgent demand, only about 40,000 organ transplants actually happen each year, creating a significant gap between those who need organs and those who receive them. This shortage means that many patients wait months or even years for a transplant, and tragically, approximately 22 people die every day while waiting simply because a suitable organ was not available in time.^[1][7]

When someone becomes an organ donor, the impact extends far beyond a single life. One deceased donor can save up to eight lives through organ donation and enhance the lives of as many as 75 additional people through tissue and eye donation. This remarkable potential makes the decision to become a donor extraordinarily meaningful, turning personal tragedy into opportunities for others to continue living, working, and spending time with their loved ones.^[2][5]

Who Can Become an Organ Donor

One of the most important facts about organ donation is that almost everyone can be considered a potential donor, regardless of age or medical background. There is no official upper age limit for donation—in fact, in 2021, one out of every three organ donors was over the age of 50, and the oldest organ donor in the United States was 92 years old. Healthcare providers carefully assess the health and condition of available organs and tissues when they become available, determining which can be safely and effectively transplanted.^[1][6]

People of all ages, ethnicities, and medical histories should consider themselves potential donors. Even if someone has a chronic illness or disease affecting one part of their body, they may still be able to donate other organs or tissues that remain healthy. Medical professionals make the final determination about which organs and tissues are suitable for transplantation based on careful evaluation at the time of donation. This assessment ensures that both the safety of recipients and the viability of donated organs are maintained.^[2]

For those interested in becoming living donors, the eligibility requirements are more specific. Living donors must be at least 18 years old to provide legal consent, be in good overall physical and mental health with minimal surgical risk, and be well-informed about the entire process and its potential outcomes. They must also be donating voluntarily, without pressure from others, and be a compatible blood and tissue match with the person receiving their organ. Healthcare teams conduct extensive screening tests to ensure the safety of potential living donors before proceeding with donation.^[1][14]

What Can Be Donated

The range of organs and tissues that can be donated is extensive, offering multiple ways to help others. Major organs that can be donated include the liver, kidneys, pancreas, heart, lungs, intestines, and in rare cases, the uterus. Each of these organs serves critical functions in the body, and their transplantation can mean the difference between life and death for recipients suffering from end-stage organ disease—a condition where an organ has failed and can no longer sustain life without replacement or support.^[1]

Beyond whole organs, many types of tissue can also be donated to improve quality of life for others. These include corneas (which can restore sight to people who are blind), heart valves (which repair heart defects and damage), bone marrow, bones, skin (crucial for burn victims), tendons, ligaments, cartilage, blood vessels, and nerves. In some extraordinary cases, even hands and facial tissue can be transplanted to help people who have suffered severe injuries or disfigurement.^[1][2]

For living donors, the options are more limited but still significant. A living person can donate one kidney (since the remaining kidney can handle the body’s needs), a piece of their liver (which has the remarkable ability to regenerate), and gestational tissue—tissues left over after childbirth that the newborn no longer needs and that surgeons can use in reconstructive procedures to help repair wounds and burns. In rare circumstances, living donors may also donate part of a lung, pancreas, or intestine. Additionally, living donors can donate renewable tissues such as blood, bone marrow, and umbilical cord blood, which contains healthy cells that can be used to treat various diseases.^[1][14]

How to Register as an Organ Donor

Registering to become an organ donor after death is a straightforward process in the United States. There are several convenient ways to record your decision. You can join the National Donate Life Registry online at registerme.org, or register through your individual state registry site, which you can find through the federal website at organdonor.gov. Many people register when they visit their local Department of Motor Vehicles (DMV) or Bureau of Motor Vehicles (BMV) to get or renew their driver’s license or state identification card. Some states even allow registration through smartphone apps, such as the Health app on iPhones, which can send your information directly to the national registry.^[1]

When you join a registry, you are giving your legal consent to donate your organs after your death. This official registration is extremely important because it documents your wishes clearly and legally. However, registration alone is not always enough. It is equally important to have conversations with your family members and loved ones about your decision to become an organ donor. These discussions help ensure that your family knows your wishes and can support them when the time comes. If your family has never discussed organ donation and suddenly faces this decision during a time of grief, they may struggle with uncertainty. By talking about your choice in advance, you make it easier for them to honor your wishes and potentially save multiple lives.^[1]

For those interested in becoming living donors, the process begins differently. You can start by contacting an organ donation and transplant center near you. If you want to donate to a specific person you know who needs an organ, you would contact that person’s transplant hospital directly. The process begins with comprehensive screening tests that evaluate your physical health, mental health, blood compatibility with the recipient, and your understanding of the risks and benefits involved in donation.^[1][14]

The Deceased Donation Process

The journey of deceased organ donation typically begins with a tragic event—most commonly a stroke, heart attack, or severe head injury. When someone is brought to the hospital, emergency medical teams and doctors immediately begin lifesaving efforts. These efforts continue in the emergency room and intensive care unit, where medical staff use ventilators, intravenous fluids, blood replacement, and medications to stabilize the patient. The priority at this stage is always to save the patient’s life, not to facilitate organ donation.^[4][11]

If doctors determine that a patient has suffered brain death—an irreversible loss of all brain function including the brain stem—the patient is declared dead. Brain death occurs when blood flow to the entire brain stops, causing the brain tissue to die. After brain death is declared, the body can be maintained temporarily on artificial support systems like a ventilator to preserve the organs until donation can occur. At this point, specially trained medical professionals from the organ procurement organization (OPO) come to the hospital to evaluate whether the patient is medically suitable for organ donation.^[4][11]

The next crucial step involves authorization for donation. A doctor first talks to the family about the patient’s death. Then, someone from the OPO or specially trained hospital staff discusses donation with the family. If the patient was registered in a state or national donor registry, that information is shared with the family, and the OPO counselor explains the donation process and answers all questions. When a patient has not registered as a donor, the family must decide whether to consent to donation. This decision is often easier if the family has previously discussed donation together and knows what their loved one would have wanted.^[4][11]

Once authorization is obtained, the donor’s information—including blood type, height, weight, and hospital location—is entered into a national computer system managed by the United Network for Organ Sharing (UNOS). This system identifies appropriate transplant candidates for whom the donor’s organs are the best match, based on medical compatibility, medical urgency, waiting time, and geographic location. Timing is critical at this stage to ensure organs remain viable for transplantation.^[4][11]

The donor is then taken to an operating room where organs are surgically removed with great care and respect. After recovery, the organs are quickly transported to transplant hospitals where recipients are waiting. The entire process is conducted with honor and dignity for the donor. Following the organ recovery procedure, the donor’s body is taken to a funeral home, and the OPO works with the funeral director to honor the donor family’s wishes. An open-casket funeral is possible for organ and tissue donors, as the donation process does not prevent this type of service.^[4][7]

Living Organ Donation

Living donation offers unique advantages and opportunities within the organ transplantation system. Unlike deceased donation, where timing depends on unpredictable events, living donation allows for planned, scheduled procedures. In 2023, more than 6,900 transplants were made possible by living donors. Most commonly, living donors give a kidney or a portion of their liver, though other organs can be donated in rare circumstances.^[14][15]

There are several types of living donation. Directed donation is the most common type, where the donor names a specific person to receive the organ. This person might be a biological relative like a parent, sibling, or adult child; a spouse, partner, or close friend; or even someone who has heard about the transplant candidate’s need through public appeals or social media. The personal connection between donor and recipient often makes this type of donation emotionally meaningful for both parties.^[15]

When direct donation is not possible due to incompatibility, paired donation offers another option. In kidney paired donation and liver paired donation, organs are “swapped” between two or more donor-recipient pairs so that each recipient receives a compatible organ. For example, if one person wants to donate a kidney to their spouse but they are incompatible, they might be matched with another incompatible pair in the same situation. The two donors swap recipients, allowing both patients to receive compatible transplants. This creative solution has enabled many more successful transplants.^[15]

Non-directed donation, also called altruistic donation, occurs when someone donates an organ without naming a specific recipient. These generous individuals simply want to help whoever needs it most, allowing the transplant system to match their organ with the most suitable candidate on the waiting list. Some non-directed donors participate in kidney paired donation chains, where their donation sets off a series of transplants involving multiple donor-recipient pairs.^[15]

Living donation offers several benefits. Recipients of organs from living donors generally have better outcomes than those who receive organs from deceased donors. Living kidney donation can prevent or shorten the need for dialysis—a medical treatment that artificially filters waste from the blood when kidneys fail. Most importantly, living donation reduces waiting time dramatically, sometimes providing an organ to someone who might otherwise wait years or die before receiving a transplant.^[14]

The process of becoming a living donor involves comprehensive evaluation. Potential donors undergo physical examinations, laboratory tests, screenings for cancer and other conditions, reviews of medical history, mental health evaluations, discussions about social support, and conversations about financial considerations such as time off work and caregiving responsibilities. Hospital staff work closely with potential donors to ensure they fully understand the risks and benefits and are making an informed, voluntary decision.^[14]

The surgery itself requires hospitalization—typically two to three days for kidney donors and about five days for liver donors. Recovery takes approximately six to twelve weeks for kidney donation and eight to twelve weeks for liver donation before donors can resume normal activities. Research shows that most living donors go on to live healthy, active lives and report the experience as positive. Many donors say they have similar or better quality of life after donation and feel emotionally fulfilled by helping save someone’s life.^[14]

How Organs Are Matched to Recipients

The system for matching organs to recipients is carefully designed to be fair, ethical, and medically sound. When organs become available, a national computer system manages the matching process using strict standards. The system is operated by the United Network for Organ Sharing (UNOS) and considers multiple factors to determine the best match for each organ.^[2]

Key factors in organ matching include blood type compatibility, tissue typing (which examines genetic markers to predict how well the recipient’s immune system will accept the organ), organ size relative to the recipient’s body, medical urgency (how sick the patient is and how quickly they need a transplant), waiting time on the transplant list, and geographic location (organs are typically offered first to patients in the same local area to minimize transport time and preserve organ viability). This systematic approach ensures that decisions about who receives organs are based on medical need and compatibility, not on wealth, celebrity status, or social connections.^[2][5]

It is important to note that the national transplant waiting list is not actually a simple list where people wait their turn in line. Instead, it functions more like a large pool of patients with different needs and characteristics. When an organ becomes available, the computer system generates a ranked list of candidates who are medically suitable for that specific organ based on all the matching factors. This means that a newly added patient with urgent need and perfect compatibility might receive an organ before someone who has been waiting longer but is less critically ill or less compatible.^[2]

Medical Management of Organ Donors

The care of potential organ donors, particularly those who have been declared brain dead, requires specialized medical management to maintain organ function until transplantation can occur. Brain death triggers dramatic changes in the body’s physiology, including disruptions to blood pressure regulation, hormone levels, temperature control, and fluid balance. These changes can damage organs and make them unsuitable for transplantation if not carefully managed.^[9]

Healthcare teams in intensive care units work to stabilize potential donors through several interventions. They carefully monitor and support blood pressure, sometimes using medications that help the heart continue beating effectively. They maintain proper fluid levels in the body and may provide hormone replacement therapy to counteract the hormonal disruptions caused by brain death. Temperature regulation is important because brain death often causes body temperature to drop, which can harm organs. Medical staff also ensure adequate oxygen delivery to all tissues and manage blood sugar levels.^[9]

This intensive medical management between the declaration of brain death and organ recovery is crucial for maximizing the number and quality of organs available for transplantation. Studies have shown that appropriate donor management can significantly improve transplant outcomes. However, practices vary considerably between different transplant centers, as there are no universally standardized protocols that all centers follow. Some institutions have developed their own detailed treatment protocols, while others rely on general guidelines and the expertise of their medical teams.^[9][13]

Important Facts About Donation

Several important facts about organ donation help dispel common misunderstandings and concerns. First, it is completely illegal to buy or sell organs and tissues in the United States. Federal law makes it a serious felony to give or receive money or any other tangible gift in exchange for a donated organ. This law exists to ensure that organ allocation is based on medical need rather than financial resources, protecting vulnerable people from exploitation and ensuring fairness in the system.^[2][5]

Religious concerns should not prevent people from considering donation. Almost all major religions support or permit organ and tissue donation, including Catholicism, Islam, Buddhism, most branches of Judaism, and most Protestant faiths. These religious traditions generally view donation as an act of charity and compassion that honors the value of life. People who have specific questions about their faith’s position on donation can consult with their religious leaders for guidance.^[2]

The need for donors spans all racial and ethnic backgrounds. Transplant success rates tend to be higher when organs are matched between members of the same ethnic background due to greater genetic compatibility. However, donors from different ethnic groups can still help patients from other backgrounds, especially when compatible matches are limited. Every registered donor, regardless of ethnicity, increases the chances that someone will receive the organ they need.^[2]

Families of deceased donors maintain their right to privacy, as do transplant recipients. Information about the donor is only shared with the recipient if the donor’s family specifically requests or agrees to it. Otherwise, patient privacy is carefully protected for both donor families and recipients. Some families and recipients do choose to meet or correspond, finding comfort and meaning in these connections, but this is always voluntary.^[2]

Most Common Methods in Organ Donation

• Deceased Donation After Brain Death
  • Declaration of brain death by doctors not involved in transplantation, confirmed by tests showing irreversible loss of all brain function
  • Maintenance of body on mechanical support systems to preserve organ function
  • Authorization obtained from registry enrollment or family consent
  • Surgical recovery of multiple organs including heart, lungs, liver, kidneys, pancreas, and intestines
  • Can save up to eight lives through organ donation
• Living Kidney Donation
  • Removal of one healthy kidney from a living donor for transplantation
  • Donor can live normally with remaining kidney
  • Two to three day hospital stay for donors
  • Six to twelve week recovery period before returning to normal activities
  • Most commonly performed type of living organ donation
• Living Liver Donation
  • Donation of a segment of the liver to a recipient in need
  • Both donor’s remaining liver and transplanted segment regenerate to near-original size
  • Approximately five-day hospital stay for donors
  • Eight to twelve week recovery period
  • Less common than kidney donation but increasingly performed
• Paired Donation Programs
  • Exchange of organs between incompatible donor-recipient pairs
  • Allows transplantation when direct donation is not possible due to blood type or tissue incompatibility
  • National computer system identifies compatible matches between multiple pairs
  • Can create donation chains involving many donors and recipients
  • Significantly expands transplant opportunities for patients with willing but incompatible donors
• Tissue and Eye Donation
  • Donation of corneas to restore sight in people who are blind
  • Donation of skin grafts for burn victims
  • Donation of bone, tendons, ligaments, and cartilage to repair injuries and diseases
  • Donation of heart valves to repair cardiac defects
  • One donor can enhance the lives of up to 75 people through tissue donation