Living Donation: Conversation Scripts for Families

Living kidney donation is when a healthy person voluntarily gives one of their two kidneys to someone who needs a transplant. The donated kidney is surgically removed from the donor and transplanted into the recipient, where it takes over the work of the failed kidneys.

This is not experimental medicine. Living donor kidney transplant has been performed successfully for over 60 years, and it is considered the gold standard treatment for kidney failure. The outcomes are better than deceased donor transplant by virtually every measure — the kidney lasts longer, starts working immediately, and the surgery can be planned in advance.

The human body is remarkably adaptable. A healthy person can live a completely normal life with one kidney. The remaining kidney compensates by growing slightly larger and increasing its filtration capacity. Within a few weeks of donation, the single kidney is doing about 70% of the work that two kidneys used to do — more than enough for a healthy life.

Living donation is also a gift that extends beyond the immediate recipient. By taking one patient off the waiting list, living donation frees up a deceased donor kidney for someone else. In paired exchange programmes, a single willing donor can set off a chain of transplants that helps multiple patients.

Despite these extraordinary benefits, living donation remains underutilised. Many potential donors never come forward simply because they do not know it is an option or because the person who needs a kidney does not know how to ask. That is what this guide aims to address.

The criteria for being a living kidney donor are straightforward, though the evaluation itself is thorough. Here are the basic requirements:

General eligibility:

• Age — Most centres accept donors between 18 and 70 years old, though the upper limit varies. Some centres evaluate donors in their 70s on a case-by-case basis.
• Good general health — Donors need to be in good overall health without conditions that would make surgery risky or that could worsen after donation.
• Two functioning kidneys — Both kidneys must be working well, with normal function confirmed by blood and urine tests.
• Willingness and autonomy — Donation must be entirely voluntary. No one should ever feel pressured to donate. The evaluation process includes safeguards to ensure the donor is acting freely.

Who typically cannot donate:

• People with diabetes, uncontrolled high blood pressure, active cancer, or HIV
• People with significant kidney disease or reduced kidney function
• People with active substance abuse problems
• People with certain psychiatric conditions that affect decision-making capacity
• People with a BMI above the centre's threshold (usually 35–40)

An important point about blood type: The donor does not need to have the same blood type as the recipient. While compatible blood types make direct donation straightforward, incompatible pairs can participate in paired exchange programmes (discussed later in this article) or, in some cases, undergo desensitisation treatment that allows transplant across blood type barriers.

Donors also do not need to be blood relatives. Spouses, partners, friends, colleagues, and even people you have never met (altruistic or non-directed donors) can all donate. The relationship to the recipient does not affect the medical outcome — what matters is biological compatibility and the donor's health.

The donor evaluation is completely separate from the recipient's evaluation. This is intentional — the donor needs their own medical team whose sole responsibility is protecting the donor's health and interests. At no point should the donor's evaluation be influenced by the recipient's need.

The evaluation typically includes:

Medical tests:

• Blood tests — Blood type, tissue typing, kidney function (creatinine and GFR), liver function, blood sugar, cholesterol, and viral screening (HIV, hepatitis B and C, CMV, EBV).
• Urine tests — 24-hour urine collection or spot urine tests to check kidney function and look for protein or blood in the urine.
• Imaging — CT angiogram of the kidneys and blood vessels. This shows the anatomy of both kidneys, including the blood supply and any abnormalities. It helps the surgeon decide which kidney to remove.
• Cardiac evaluation — ECG and, depending on age and risk factors, an echocardiogram or stress test.
• Cancer screening — Age-appropriate screenings as recommended by current guidelines.

Psychological evaluation:

A psychologist or social worker will meet with the potential donor independently (without the recipient present) to assess:

• Whether the decision to donate is genuinely voluntary and free from pressure
• The donor's understanding of the risks and benefits
• Mental health history and current psychological wellbeing
• The donor's support system for their own recovery
• Any financial or social pressures that might be influencing the decision

Independent donor advocate:

In many countries (and required by law in the US), each potential donor is assigned an independent donor advocate (IDA). This person's job is solely to represent the donor's interests throughout the process. They ensure the donor understands the risks, feels no pressure, and has the right to withdraw at any time without having to give a reason.

The entire donor evaluation typically takes 4 to 8 weeks. If the donor is approved, surgery can usually be scheduled within a few weeks to months. Throughout the process, the donor can withdraw at any point — and the transplant team will provide a neutral medical reason to the recipient if the donor prefers not to explain their decision.

For most kidney patients, asking someone to consider donating a kidney is one of the hardest things they will ever do. It feels like an enormous request — because it is. But it is also important to remember that many people want to help and simply do not know how. Giving them the information and the opportunity to decide for themselves is not imposing — it is sharing.

There is no single right way to have this conversation. Here are several approaches that patients have used successfully:

The direct conversation:

If you have a close relationship with someone and feel comfortable, a direct conversation can be the most effective approach. Choose a quiet, private moment when neither of you is rushed or stressed. You might say something like:

"I need to share something with you about my health. My kidneys are failing, and the best treatment option for me is a transplant. I am on the waiting list for a deceased donor kidney, but a living donor transplant would give me the best outcome. I am not asking you to say yes — I am asking you to think about it and learn more. The transplant centre has information for anyone who is interested, and there is absolutely no pressure."

The letter or email:

Many patients find it easier to write their thoughts down. A letter or email allows you to explain your situation fully without the pressure of a face-to-face conversation. It also gives the reader time to process the information privately. Your letter might include:

• A brief explanation of your kidney disease and why transplant is the best option
• What living donation involves (and what it does not)
• A clear statement that you are sharing information, not making a demand
• Contact details for the transplant centre's living donor coordinator
• An assurance that saying no will not affect your relationship

The wider announcement:

Some patients share their story more broadly — on social media, in a community newsletter, at their place of worship, or through a friend or family member who offers to spread the word. This approach removes the pressure of a one-on-one conversation and can reach potential donors you might never have thought to ask. Many altruistic donors have come forward after reading a social media post or hearing about a patient's need through a mutual connection.

Using an intermediary:

If you cannot bring yourself to ask directly, you can ask a trusted friend, family member, or your transplant coordinator to share the information on your behalf. Many transplant centres are experienced at having these conversations and can provide materials and guidance.

Key principles for any approach:

• Be honest about your situation and what transplant means for your life
• Make it clear that there is no obligation and no pressure
• Provide factual information about the donor process and safety
• Emphasise that the transplant centre evaluates and protects the donor independently
• Give people time and space to make their own decision
• Accept that some people will say no, and that is completely okay

When someone considers donating a kidney, fear is a natural and healthy response. Understanding the most common fears — and the evidence that addresses them — can help both donors and recipients have more productive conversations.

"What if I need that kidney later?"

This is the most common fear, and it is understandable. The evidence is reassuring: living kidney donors do not have a higher risk of kidney failure than the general population. Long-term studies following donors for 20+ years show that their risk of developing kidney disease remains very low. Additionally, in both the UK and US, former donors receive priority on the transplant waiting list if they ever need a kidney themselves — though this is exceedingly rare.

"What about the surgery itself?"

Donor nephrectomy (kidney removal) is almost always performed laparoscopically — through small incisions using a camera and specialised instruments. This minimally invasive approach means less pain, smaller scars, and faster recovery compared to open surgery. The risk of serious surgical complications is less than 1%, and the mortality risk is approximately 1 in 3,000 — comparable to having your appendix removed.

"Will I be in pain for a long time?"

Most donors experience moderate pain for the first few days, managed with medication. By the end of the first week, most donors have transitioned to over-the-counter pain relief. By 2–4 weeks, most donors feel well enough to return to desk jobs or light activity. Full recovery, including return to strenuous exercise, typically takes 4–6 weeks.

"What about the cost?"

In the UK, all donor medical costs are covered by the NHS, and donors can claim reimbursement for travel expenses, lost earnings, and childcare costs through NHSBT's donor reimbursement scheme. In the US, the recipient's insurance covers the donor's surgery and related medical costs. Some donors may still face out-of-pocket expenses (travel, lost wages), but organisations like the National Living Donor Assistance Centre can help cover these costs.

"What if my kidney gets rejected?"

Rejection is a possibility with any transplant, but it is not related to anything the donor did wrong. Modern immunosuppressive medications have made acute rejection much less common, and even when it occurs, it can usually be treated successfully. The long-term success rates for living donor transplants are excellent — over 95% of kidneys are still working at one year, and the average lifespan of a living donor kidney is 15–20 years.

"I am scared and I do not know if I can do it."

This is perhaps the most important fear to acknowledge. Donating a kidney is a major decision, and feeling scared is completely normal. No one should donate unless they feel genuinely ready and willing. The evaluation process includes multiple opportunities to ask questions, express concerns, and ultimately decide whether to proceed. Saying no — at any point — is always acceptable and will be respected without judgement.

Understanding what life looks like after donation is important for anyone considering this decision. The good news is that the vast majority of donors recover quickly and return to their normal lives without restrictions.

The first week:

Most donors stay in hospital for 2–3 days after laparoscopic surgery. Pain is managed with medication and typically improves day by day. Fatigue is normal and expected. Walking is encouraged from the first day to prevent blood clots and promote recovery. You will have a small dressing over the incision sites and possibly a drainage tube that is usually removed before discharge.

Weeks 2–4:

Most donors are able to manage daily tasks independently by the second week, though heavy lifting (over 10 pounds) should be avoided. Driving is usually permitted once you are no longer taking strong pain medication and can perform an emergency stop comfortably — typically 2–3 weeks after surgery. Many donors with desk jobs return to work within 2–3 weeks.

Weeks 4–6:

By this point, most donors feel largely back to normal. Physical jobs, exercise, and more strenuous activities can usually be resumed after 4–6 weeks, with guidance from your surgical team. Some donors report mild fatigue or discomfort that takes a few additional weeks to fully resolve.

Long-term follow-up:

After donation, your remaining kidney compensates by increasing its function. Your GFR will be lower than before donation (because you have one kidney instead of two), but it stabilises at a level that is well within the healthy range. You will have regular check-ups — typically annually — to monitor your kidney function, blood pressure, and overall health.

Long-term health outcomes for donors:

• Donors have a normal life expectancy — large studies show no difference in lifespan between donors and matched non-donors.
• The risk of developing kidney failure after donation is very low — estimated at less than 1% over a lifetime, similar to the general population.
• Donors may have a slightly higher risk of developing high blood pressure over time, but this is easily monitored and treated.
• Female donors can have healthy pregnancies after donation, though they may be monitored more closely.

Most donors describe the experience as profoundly meaningful. Studies consistently show high rates of satisfaction among living donors, with the vast majority saying they would do it again.

Paired exchange programmes are one of the most remarkable innovations in transplant medicine. They solve the problem of willing but incompatible donors by creating a network of swaps that allows everyone to benefit.

How it works:

Imagine you need a kidney and your partner wants to donate, but their blood type is not compatible with yours. Meanwhile, across the country, another patient is in the same situation — they have a willing donor who is incompatible. In a paired exchange, your partner donates to the other patient, and the other patient's donor donates to you. Both recipients get compatible kidneys, and both donors get to help the person they care about.

In practice, paired exchange chains can involve many more than two pairs. Some chains have included dozens of donor-recipient pairs, triggered by a single altruistic (non-directed) donor who donates without having a specific recipient in mind. These chains can run across multiple hospitals and even across national borders.

How to participate:

If you and your potential donor are found to be incompatible during the evaluation, your transplant centre will discuss the option of entering a paired exchange programme. The process involves:

• Both you and your donor completing the standard evaluation process
• Your blood type, tissue type, and antibody information being entered into the exchange database
• A computer algorithm identifying potential matches with other incompatible pairs
• Coordinating surgery dates across multiple hospitals (all the surgeries in a chain typically happen on the same day or within a few days)

Programmes in the UK:

NHSBT runs the National Living Donor Kidney Sharing Scheme, which includes paired donation, pooled donation (three-way exchanges), and altruistic donor chains. Matching runs are conducted quarterly, and the programme has facilitated hundreds of transplants that would otherwise not have been possible.

Programmes in the US:

Multiple organisations facilitate paired exchange in the US, including:

• UNOS Kidney Paired Donation Pilot Programme
• National Kidney Registry (NKR) — The largest paired exchange programme in the US
• Alliance for Paired Kidney Donation (APKD)

Many transplant centres participate in more than one programme to maximise the chances of finding a match.

Paired exchange has transformed the landscape of living donation. If you have been told that your willing donor is incompatible, paired exchange may still make transplant possible. Ask your transplant centre about the programmes available to you — this is an area where persistence and awareness truly pay off.