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Urology · UK

Percutaneous nephrolithotomy - large stones, cleared properly.

Keyhole surgery through a 1 cm flank incision that removes large and staghorn kidney stones in a single operation. A high-volume endourologist, CT-planned access, and the metabolic follow-up that stops the next stone.

See indicative pricing
A radiographer guides a patient onto the bed of an advanced 3 Tesla MRI scanner in a London imaging suite

Indicative pricing

What private PCNL costs in the UK.

Indicative ranges across our partner stone units.

In short

£8,000–£12,500, home after one to three nights.

Procedure Indicative range
Standard PCNL (single tract) £8,000–£12,500
Mini-PCNL (miniaturised instruments) £7,500–£11,500
Complex or staghorn PCNL (multiple tracts) £11,000–£16,000
Stent removal (flexible cystoscopy) £500–£900
CT KUB (planning scan) £350–£600
Metabolic stone screen and prevention consult £300–£600
Endourology consultation only £250–£400

Prices vary by hospital, by the consultant, by technique (standard, mini, multi-tract) and by length of stay. Staghorn and multi-tract cases sit at the top of the range; a straightforward mini-PCNL with one night in hospital at the bottom.

The problem

One decisive operation beats three half-measures.

Large stones are where stone care drifts - repeated shockwave sessions that cannot win, waits that let infection smoulder, and no prevention afterwards. We fix all three.

  • Stop shockwaving the unshockable

    A 2.5 cm dense stone will not yield to ESWL in any reasonable number of sessions. Matching the operation to the stone, first time, is the whole game.

  • Infected stones cannot wait months

    Staghorn stones breed bacteria and quietly erode kidney function. When surgery is indicated, weeks matter - we compress the pathway accordingly.

  • The operation without prevention is half a treatment

    Half of stone-formers recur. Fragment analysis and a metabolic screen after surgery are standard in our pathway, not an optional extra.

When it helps

When PCNL is the right operation.

The situations we see most, plus the one red flag that means A&E now rather than any booking.

  • A kidney stone over 2 cm

    Above this size, PCNL clears the stone in one sitting far more reliably than shockwave or ureteroscopy - it is the guideline first choice.

  • Staghorn stones

    Branched stones filling the collecting system, usually infection-related. Left alone they destroy kidney function; PCNL is the definitive treatment.

  • Lower-pole stones over 1 cm

    Fragments from the lower pole drain poorly after shockwave. For larger lower-pole stones, PCNL clears where other methods scatter.

  • Hard stones that shrug off shockwave

    Cystine and calcium oxalate monohydrate stones with high CT density resist ESWL - fragmenting them under direct vision works.

  • Failed ureteroscopy or ESWL

    When two or three sessions of other treatment have left significant stone behind, one PCNL usually finishes the job.

  • Recurrent infections from a stone

    A stone harbouring bacteria causes UTI after UTI - antibiotics cannot cure what only clearance fixes.

  • Anatomical quirks

    Horseshoe kidneys, calyceal diverticula and transplant kidneys often need the direct percutaneous route.

  • Red flag: fever with an obstructing stone

    An infected, obstructed kidney is a same-day emergency needing drainage - A&E now, not an outpatient booking with us or anyone else.

Procedure options

Tract size and technique both depend on the stone.

What each option involves - tract size (standard, mini, micro), position (prone, supine), and the combined and tubeless variants.

  • Standard PCNL

    A roughly 1 cm tract, rigid nephroscope, ultrasonic or laser fragmentation with suction removal. The workhorse for large and staghorn stones.

  • Mini-PCNL

    Miniaturised sheath and scope through a smaller tract. Less bleeding and pain, quicker discharge - at the cost of slower clearance for the very biggest stones.

  • Ultra-mini and micro-PCNL

    The smallest tracts of all, for moderate stones in selected patients - blurring the line with ureteroscopy in specialist hands.

  • Prone vs supine position

    The classic face-down position gives the widest access; supine allows simultaneous ureteroscopy and easier anaesthesia. Surgeon preference, decided in planning.

  • Endoscopic combined surgery (ECIRS)

    PCNL and flexible ureteroscopy at the same sitting, one surgeon at each end - for complex stone burdens needing every angle.

  • Tubeless PCNL

    Selected clean, single-tract cases finish with a stent only and no nephrostomy tube - less pain, earlier discharge.

  • Multiple-tract PCNL

    Full staghorn burdens sometimes need two or three access tracts in one operation - higher bleeding risk, so volume surgeons only.

  • The alternatives, honestly

    Flexible ureteroscopy for stones under 2 cm; shockwave for small, soft, well-placed stones. When they fit better, we say so - see our stone-treatment comparison page.

Safety and recovery

What to expect afterwards - honestly.

PCNL is real surgery with real but well-quantified risks. The things worth planning are bleeding cover, infection prevention, and life with a stent for a fortnight.

  • A general anaesthetic and a planned stay

    PCNL is proper surgery: 60–180 minutes under GA, one to three nights in hospital. Frailty, anaesthetic risk and kidney function are assessed before anything is booked.

  • Bleeding is the signature risk

    The tract passes through kidney tissue, which bleeds. Transfusion is needed in roughly 3–7 percent of standard PCNLs, fewer with mini instruments; rarely, embolisation by an interventional radiologist is required.

  • Infection and sepsis

    Fever occurs in up to one in five; true sepsis in 1–3 percent. A pre-operative urine culture, targeted antibiotics and low irrigation pressures are the defences - and why culture is non-negotiable.

  • Injury to neighbouring organs

    The pleura, colon, liver and spleen are the kidney’s neighbours. Injury rates are well under 1 percent with image-guided puncture; upper-pole tracts carry a small pneumothorax risk.

  • Residual fragments

    Stone-free rates run 80–90 percent for large stones - better than any alternative, but not perfect. Follow-up imaging finds what remains, and a second-look procedure occasionally finishes the job.

  • Stents and tubes are temporary but real

    A ureteric stent can cause urgency, flank twinges and blood-tinged urine until removal at one to two weeks. A nephrostomy tube, when used, usually comes out before discharge.

  • Recovery timeline

    Desk work at one to two weeks; heavy lifting and contact sport from four to six weeks. Blood-tinged urine on and off for a fortnight is expected - bright-red persistent bleeding is not.

  • Kidney function is preserved

    The tract heals to a tiny scar; measurable loss of kidney function after uncomplicated PCNL is negligible. Clearing an obstructing or infected stone usually protects function.

  • Red flags after surgery

    Fever or rigors, heavy or persistent bright-red bleeding, breathlessness, or flank pain that escalates rather than settles - the urology team or A&E the same day, not a routine call.

Reading your operation note

Your operation note in four parts. Read the last one first.

Whichever technique was used - standard, mini or combined - the note the endourologist sends you keeps to the same shape.

A UK consultant urologist reviewing a patient’s PCNL operation notes

A quiet reminder

Surgical language is precise and can read coldly - we translate it for you.

If you would like us to talk you through the operation note and the stone analysis before your review, just ask.

  1. 01 Header

    Indication, side and approach

    The stone burden treated, which kidney, prone or supine, and whether the case was standard, mini or multi-tract.

  2. 02 Technique

    Access, fragmentation and drainage

    Which calyx was punctured, how the tract was dilated, the energy used to fragment the stone, and what was left in - stent, nephrostomy or neither.

  3. 03 Findings

    Clearance and specimens

    The surgeon’s estimate of stone clearance, anything sent for culture, and the fragments sent for biochemical analysis.

  4. 04 Impression

    Stent plan, imaging and prevention

    Read this first: when the stent comes out, the follow-up scan date, and the metabolic work-up that reduces the odds of doing this twice.

Recognised by major UK insurers

BupaAXA HealthVitalityAvivaWPACignaHealixBupaAXA HealthVitalityAvivaWPACignaHealixBupaAXA HealthVitalityAvivaWPACignaHealix

PCNL is almost always covered - kidney stone surgery is unambiguously medically indicated.

Frequently asked

Everything we get asked about PCNL.

Quick answers on the operation, recovery, success rates, cost and preventing the next stone.

  • What happens during a percutaneous nephrolithotomy?

    Under general anaesthetic, the surgeon passes a fine needle through a 1 cm incision in your flank directly into the kidney, guided by X-ray and ultrasound. The track is widened to a narrow sheath, a telescope is passed, and the stone is broken up with a laser or ultrasonic probe and suctioned or grasped out. The operation takes one to two hours, and most people stay one to three nights.

  • How painful is PCNL and how long is recovery?

    Expect flank soreness like a deep bruise for a week or two, controlled with regular painkillers, plus stent sensations - urgency and twinges - until the stent is removed at one to two weeks. Most people manage desk work within one to two weeks and return to full activity, including lifting and sport, by four to six weeks.

  • How successful is PCNL at clearing stones?

    For large and staghorn stones it is the most effective option available: stone-free rates of 80–90 percent in a single operation, against roughly 50 percent or less for repeated shockwave sessions on the same stones. Residual fragments are found on the follow-up scan and can usually be cleared with a short second procedure if needed.

  • What are the main risks of PCNL?

    Bleeding is the headline risk - transfusion in around 3–7 percent, and rarely a radiological embolisation to stop persistent bleeding. Infection ranges from transient fever (common) to sepsis (1–3 percent), which is why urine is cultured and treated beforehand. Injury to the lung lining, bowel or neighbouring organs occurs in well under 1 percent with image-guided puncture.

  • How much does private PCNL cost in the UK?

    Typically £8,000–£12,500 all-in for a standard single-tract PCNL in 2026, £7,500–£11,500 for mini-PCNL, and £11,000–£16,000 for complex or staghorn cases needing multiple tracts. Add stent removal at £500–£900. Insured patients are usually covered, as stone surgery is clearly medically indicated.

  • Can I have PCNL on the NHS instead?

    Yes - PCNL is standard NHS treatment for large stones. The constraint is time: as non-emergency surgery it commonly waits months, during which infections and pain continue. Many patients we help are NHS-listed and choose private surgery for speed or for a named high-volume stone surgeon; others use their private medical insurance.

  • Will I need treatment again?

    Without prevention, about half of stone-formers grow another stone within five to ten years. That is why the follow-up matters as much as the operation: fragment analysis, a 24-hour urine metabolic screen, and targeted advice - fluid volume above all, plus diet or medication tailored to your stone type - can cut recurrence substantially.

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