Kidney transplant: the operation and life after

Understanding the transplant itself

A kidney transplant surgically places a healthy donor kidney into the body to take over the work failing kidneys can no longer do. It is a real operation with a real recovery, followed by a lifetime of anti-rejection medicine and monitoring — it is a beginning, not a finish line. This guide picks up once evaluation (covered separately) has confirmed you are suitable, and walks through the operation, the hospital stay, and the early shape of life afterwards.

One detail surprises many patients: the failing kidneys are usually left in place. The new kidney is typically placed in the lower abdomen, and its blood vessels and drainage tube (ureter) are connected there — a shorter, generally more straightforward operation than removing the old kidneys first would be.

Before the operation

• ●Once a donor kidney is confirmed — from a living donor or through the deceased-donor list — final pre-operative checks are completed quickly
• ●You will be asked to fast beforehand, as with any major surgery
• ●If you are on dialysis, a session may be arranged shortly before surgery depending on your situation
• ●The surgical and transplant teams will confirm final consent and answer any last questions

What happens on the day

The operation is performed under general anaesthesia and generally takes a few hours. The surgical team places the donor kidney in the lower abdomen, connects its artery and vein to your own blood vessels to restore blood flow, and connects the ureter to your bladder so the new kidney can drain urine. Many transplanted kidneys begin producing urine in the operating theatre itself, which the team can visibly confirm before you leave surgery.

Immediately afterwards, you wake in a monitored recovery area with close observation of blood pressure, urine output and the transplant site — standard practice after any major operation, not a sign of concern.

Understanding immunosuppression, by class

Your immune system's normal job is to attack anything it recognises as foreign — including a transplanted kidney. Anti-rejection (immunosuppressive) medicines deliberately reduce this response so the new kidney is not attacked, at the cost of also reducing your defences against infection. This trade-off is managed carefully and monitored closely, not left to chance.

• ●Induction therapy — a stronger dose of immune-suppressing medicine given around the time of surgery itself, when rejection risk is highest
• ●Calcineurin inhibitors — the core, long-term anti-rejection medicine for most patients, blocking a key step immune cells need to become activated against the new kidney
• ●Antimetabolites — reduce the immune system's ability to multiply the cells that would otherwise attack the transplant
• ●Corticosteroids — broadly dampen immune activity, often used at a higher dose early on and reduced over time

These medicines are taken for as long as the transplanted kidney is working — usually for life — and blood levels are checked regularly, because too little raises rejection risk while too much raises infection and side-effect risk. Never stop or change the dose yourself, even briefly.

The hospital stay

Most patients spend a period of several days in hospital after transplant, with the exact length depending on how smoothly the new kidney begins working and how you recover. During this time the team checks kidney function daily with blood tests, monitors the wound and drainage, adjusts anti-rejection medicine doses, and helps you mobilise gradually.

Occasionally, a transplanted kidney takes a little longer to start working fully — called delayed graft function — and dialysis may be needed for a short period while it recovers; this does not necessarily mean the transplant has failed.

What affects how surgery and recovery go

• ●How well cardiovascular and other conditions were controlled before surgery, established during evaluation
• ●Diabetes, which affects wound healing and infection risk
• ●How closely donor and recipient are matched
• ●Whether the kidney came from a living or deceased donor
• ●How consistently anti-rejection medicines are taken afterwards

The first weeks at home

Going home is an early milestone, not the end of recovery — the first weeks are when the transplant team watches most closely for early problems and when new habits are established.

• ✓Take anti-rejection medicines at the same times every day — missed or irregular doses are one of the most preventable causes of rejection
• ✓Attend every early follow-up visit and blood test, even if you feel completely well
• ✓Take infection precautions seriously while immunosuppression is at its strongest — careful hand hygiene, food safety, and avoiding known unwell contacts
• ✓Arrange practical support at home for lifting, errands and transport during early recovery
• ✓Check with the transplant team before starting any new medicine, herbal product or supplement, for life

Day-to-day life with a working transplant — diet, activity, vaccination, long-term monitoring and returning to work — is covered in detail in our separate guide on living after a kidney transplant, once you are settled into this new routine.

Preparing for surgery and follow-up

What to bring on admission

• ✓A complete, current list of all medicines, including herbal and over-the-counter products
• ✓Previous dialysis, kidney and cardiac records
• ✓Contact details for your support person at home
• ✓Your HMO card or payment details

Questions worth asking us

• ●What should I expect in the first 24 to 48 hours after surgery?
• ●How will I know my anti-rejection medicine doses are right?
• ●What early warning signs should prompt me to call before my next visit?
• ●How soon can I expect to return to normal activity and work?