A living liver donor is a person who voluntarily has a portion of their liver surgically removed so it can be transplanted into someone with liver failure. Because the liver is the only organ in the body that can regenerate, both the piece given to the recipient and the portion left in the donor grow back to full size, typically within a couple of months. This makes it possible for one healthy person to essentially save another’s life while keeping full liver function themselves.
Why Living Donation Exists
The need for liver transplants far exceeds the supply of organs from deceased donors. Wait times can stretch months or years, and some patients deteriorate too quickly to survive the list. A living donor transplant lets the recipient bypass much of that wait. It also allows the surgery to be scheduled at an optimal time, when the recipient is stable enough to benefit most, rather than relying on the unpredictable timing of a deceased donor organ becoming available.
Outcomes reflect this advantage. According to data from the Scientific Registry of Transplant Recipients, adults who receive a liver from a living donor have better survival rates than those who receive one from a deceased donor. Five-year graft failure rates are about 15.9% for living donor recipients compared to 19.8% for deceased donor recipients. At ten years, the gap persists: 32.5% versus 35.7%.
Who Can Be a Living Liver Donor
Not everyone who volunteers will qualify. The basic requirements at most transplant centers include being between 18 and 65 years old, being in good overall health with no major medical or psychiatric conditions, and not being significantly overweight. Candidates who lose weight may still be considered. Smokers need to quit at least six weeks before surgery, and people taking birth control pills are asked to stop them six weeks prior as well.
Beyond these baseline criteria, the evaluation process is extensive. It typically starts with blood tests, a chest X-ray, a heart tracing (EKG), and an abdominal ultrasound. If those come back clean, a CT scan of the abdomen maps the liver’s size and anatomy to confirm there’s enough volume to split safely between donor and recipient. In some cases, a liver biopsy is required. You’ll also meet with a social worker to talk through the emotional and practical realities of donation, and the transplant team screens for any signs of coercion, financial motivation, or psychological factors that might compromise your ability to make a truly informed decision.
Directed vs. Non-Directed Donation
Most living liver donors are “directed” donors, meaning they’re donating to a specific person they know, often a family member, spouse, or close friend. But you don’t have to know the recipient. Non-directed donors, sometimes called altruistic or good Samaritan donors, offer a portion of their liver to whoever on the transplant list needs it most. In non-directed donations, the identities of both donor and recipient are kept confidential under federal regulations.
Transplant centers evaluate non-directed donors with particular care. Rather than trying to define what counts as an acceptable motivation, teams look for red flags: expecting financial compensation, seeking attention, or wanting to form an inappropriate emotional connection with the recipient. Any of these would disqualify a candidate.
What the Surgery Involves
The operation removes a portion of the donor’s liver, most commonly the right lobe for adult-to-adult transplants, since it provides enough volume for a full-sized recipient. The surgery can be performed through a traditional open incision or using minimally invasive techniques. Laparoscopic donor surgery takes longer in the operating room (roughly five and a half hours compared to about four and a half for open surgery), but it may offer benefits in recovery. Not every transplant center offers the laparoscopic approach, and the choice depends on the donor’s anatomy and the surgical team’s experience.
Both the donor and recipient are in surgery at the same time, often in adjacent operating rooms. The removed portion is placed into the recipient immediately.
Recovery After Donation
The liver begins regenerating immediately after surgery. Most donors see their liver return to normal size within eight to twelve weeks. During that window, recovery follows a predictable path: the first several days are spent in the hospital managing pain and gradually resuming eating and walking. Most donors return to regular activities, including work, within six to eight weeks.
The most common surgical complication is bile leakage, which occurs in roughly 12.5% of donors based on single-center data. Most bile leaks resolve on their own or with minor intervention, though a small number require a second surgery. Other potential complications include the usual risks of any major abdominal operation: bleeding, infection, and reactions to anesthesia.
Long-Term Health After Donation
Living liver donation does not appear to compromise long-term health. Studies consistently show that general health and quality-of-life scores in previous liver donors are equal to or better than those of the general population. Some donors have reported lingering fatigue, digestive issues, or psychological effects after surgery, but these are not typical outcomes and generally resolve with time and proper support.
One important limitation: you can only donate once. While the liver regenerates well from a single division, a second surgery would place too much stress on the organ and raise complication risks to an unacceptable level. Transplant teams do not accept repeat donations.
Who Pays for Donation
The recipient’s insurance covers virtually all of the donor’s medical costs, including the evaluation, hospitalization, surgery, follow-up appointments, and treatment for any surgical complications. The donor should not receive a bill for medical care related to the donation.
It is illegal to be paid for donating an organ. However, the recipient can reimburse you for travel, lodging, childcare, and other transplant-related expenses. If you’re not being reimbursed through the recipient or another source, you may be eligible for assistance through the National Living Donor Assistance Center, a federal program that can cover some travel costs for qualifying donors. What insurance does not cover is lost income during recovery, which remains one of the most significant practical barriers for potential donors.