Endoscopic kidney stone removal is a minimally invasive approach in which a doctor uses a thin endoscope to reach a kidney or ureteral stone through the body's natural urinary passage.

Unlike open surgery, the procedure does not usually require a large external incision.

Depending on where the stone is located, the procedure may involve:

• Ureteroscopy (URS)

• Flexible ureteroscopy

• Retrograde intrarenal surgery (RIRS)

• Laser lithotripsy

• Retrieval of stone fragments with specialized instruments

The appropriate technique depends on the stone's size, location, number, density, urinary anatomy and the patient's medical condition.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides specialist evaluation of kidney stones and kidney-function concerns and can coordinate appropriate treatment with urological specialists when endoscopic stone removal is required.

When Is Endoscopic Stone Removal Recommended?

Not every kidney stone requires an endoscopic procedure.

Some smaller stones may pass naturally with appropriate medical management and observation.

Endoscopic removal may be considered when a stone:

• Is unlikely to pass naturally

• Causes persistent or recurrent pain

• Produces urinary obstruction

• Causes repeated infections

• Is increasing in size

• Affects kidney function

• Remains in a problematic location

• Has not responded to conservative treatment

• Requires active removal based on its size or clinical situation

The decision is individualized after reviewing imaging and the patient's symptoms.

How Does Endoscopic Kidney Stone Removal Work?

The basic principle is to reach the stone without making a large surgical incision.

During ureteroscopy:

1. A thin endoscope is introduced through the urethra into the bladder.

2. The instrument is guided into the ureter.

3. If the stone is inside the kidney, a flexible scope may be advanced into the renal collecting system.

4. The stone is visualized directly.

5. A laser or another appropriate energy source may fragment the stone.

6. Larger fragments may be retrieved using a small basket.

7. A temporary ureteral stent may be placed when necessary.

The exact steps vary depending on the stone and procedure.

What Is Ureteroscopy for Kidney Stones?

Ureteroscopy (URS) is an endoscopic procedure used to diagnose and treat stones within the ureter and, in selected situations, the kidney.

A rigid or semi-rigid ureteroscope may be used for stones in certain portions of the ureter.

The stone can be fragmented with laser energy and removed with specialized instruments.

URS is particularly useful when a stone requires active removal and spontaneous passage is unlikely.

What Is RIRS?

Retrograde intrarenal surgery (RIRS) is a form of flexible ureteroscopy used to treat stones located inside the kidney.

A flexible scope is passed through the urinary tract and into the kidney's collecting system.

The doctor can inspect different calyces and use laser energy to fragment the stone.

RIRS may be considered for selected renal stones based on their size, location and other characteristics.

How Does Laser Kidney Stone Removal Work?

Laser lithotripsy uses laser energy to break a stone into smaller pieces.

The doctor directs the laser onto the stone through the endoscope.

Depending on the stone and treatment plan, fragments may be:

• Removed with a basket

• Broken into very small particles

• Allowed to pass naturally after the procedure

The exact laser settings and technique are selected by the treating specialist.

Is Endoscopic Kidney Stone Removal Painful?

The procedure itself is generally performed under anesthesia, so significant pain is not expected during the operation.

Afterward, some patients may experience temporary:

• Burning while urinating

• Urinary frequency

• Bladder discomfort

• Flank discomfort

• Mild blood in urine

A ureteral stent can also cause urinary urgency or discomfort while it remains in place.

Post-procedure symptoms vary between individuals.

What Happens Before Endoscopic Stone Removal?

Pre-procedure assessment is important for planning safe treatment.

The treating team may review:

Imaging

Ultrasound, X-ray or CT imaging may be used to determine:

• Stone size

• Stone location

• Number of stones

• Stone density

• Urinary obstruction

• Kidney anatomy

Urine Testing

Urinalysis and urine culture may be recommended to identify infection.

Blood Tests

Depending on the patient's health, testing may include:

• Serum creatinine

• eGFR

• Electrolytes

• Blood count

• Other preoperative investigations

Medication Review

The medical team may review blood thinners, diabetes medicines and other medications before the procedure.

Patients should provide a complete list of medicines and supplements.

Why Is Infection Testing Important Before Stone Removal?

A urinary infection should be identified and appropriately treated before definitive stone manipulation whenever possible.

This is particularly important because an obstructed urinary system containing infected urine can become a serious medical emergency.

If a patient has fever, chills, severe illness or evidence of infected obstruction, urgent urinary drainage may be prioritized before definitive stone removal.

Drainage may involve a ureteral stent or nephrostomy depending on the clinical situation.

Can Endoscopy Remove Large Kidney Stones?

Endoscopic techniques can treat many kidney stones, but the best approach depends on the overall stone burden.

For larger or complex renal stones, a procedure such as percutaneous nephrolithotomy (PCNL) may be more appropriate.

Some patients with larger stones may require:

• Multiple endoscopic sessions

• Staged procedures

• A combination of techniques

• An alternative procedure based on stone characteristics

Stone size alone does not determine the procedure.

Endoscopic Removal vs ESWL

Both endoscopic treatment and shock wave lithotripsy can be used for selected urinary stones.

ESWL/SWL uses externally generated shock waves to fragment a stone.

Endoscopic treatment reaches the stone directly through the urinary tract.

The choice depends on:

• Stone size

• Stone location

• Stone density

• Kidney anatomy

• Obstruction

• Infection

• Patient factors

• Previous treatment

Neither method is automatically appropriate for every stone.

Endoscopic Removal vs PCNL

The procedures differ mainly in how the stone is accessed.

Endoscopic Ureteroscopy/RIRS

The stone is reached through the natural urinary passage.

PCNL

A small tract is created through the skin into the kidney to access and remove larger stone burdens.

PCNL is commonly considered for larger or complex renal stones, while ureteroscopy/RIRS may be suitable for selected smaller or appropriately located stones.

A specialist chooses the approach according to the individual stone characteristics.

Is a Ureteral Stent Needed After Endoscopic Stone Removal?

Not every patient requires a stent.

A temporary stent may be used when:

• The ureter is swollen

• There is a risk of temporary obstruction

• Stone fragments need to pass

• The procedure was extensive

• The doctor wants to support urine drainage

• Another procedure is planned

Stent-related symptoms can include:

• Urinary urgency

• Frequent urination

• Burning

• Flank discomfort

• Bladder discomfort

• Mild blood in urine

A stent should be removed or exchanged according to the treating doctor's schedule.

Recovery After Endoscopic Kidney Stone Removal

Recovery depends on the procedure, stone burden and individual health.

Some patients can return to routine activities relatively quickly, while others may require additional recovery time.

Temporary symptoms can include:

• Mild urinary discomfort

• Blood in urine

• Urinary frequency

• Flank discomfort

• Passage of small fragments

Follow-up instructions may include medicines, fluid guidance, activity restrictions and imaging.

Patients should follow the specific advice provided by their treating team.

How Long Does It Take to Recover?

There is no single recovery time for every patient.

Recovery can be influenced by:

• Number of stones

• Stone size

• Procedure complexity

• Whether a stent was inserted

• Infection

• Kidney function

• Overall health

A straightforward ureteroscopy may have a relatively short recovery period, while staged treatment for a larger stone burden may take longer.

What Are the Risks of Endoscopic Kidney Stone Removal?

Endoscopic stone procedures are commonly performed, but they are not risk-free.

Possible complications include:

• Bleeding

• Urinary infection

• Ureteral injury

• Temporary swelling

• Residual stone fragments

• Stone migration

• Stent-related discomfort

• Need for another procedure

• Rare ureteral narrowing or other complications

The individual risk depends on the patient's anatomy, stone characteristics, medical history and procedure.

What If Stone Fragments Remain?

Complete stone clearance is not guaranteed after every procedure.

Residual fragments may occur, particularly when:

• The stone burden is large

• Multiple calyces contain stones

• The stone is difficult to access

• The procedure is intentionally staged

• Fragment clearance is incomplete

Follow-up imaging can help determine whether additional treatment is necessary.

Can Kidney Function Improve After Stone Removal?

If a stone is causing obstruction and kidney function has been affected, relieving the obstruction may allow kidney function to improve in some patients.

The degree of recovery depends on:

• Duration of obstruction

• Severity of blockage

• Presence of infection

• Baseline kidney function

• Degree of existing kidney damage

A stone removal procedure does not guarantee complete recovery when permanent damage has already occurred.

Endoscopic Treatment for Recurrent Kidney Stones

Removing one stone does not necessarily prevent another from forming.

Patients with recurrent stones may benefit from evaluation of the factors contributing to stone formation.

Depending on the case, this may include:

• Stone analysis

• Blood tests

• Urine testing

• Metabolic evaluation

• Dietary assessment

Preventive treatment can then be individualized.

How Can Kidney Stones Be Prevented After Endoscopic Removal?

General prevention may include:

• Maintain appropriate fluid intake.

• Reduce excessive dietary sodium.

• Follow an individualized dietary plan.

• Avoid unnecessary supplements.

• Take prescribed preventive medicines correctly.

• Address recurrent urinary infections.

• Complete recommended metabolic testing.

Fluid and dietary recommendations should be adapted to kidney function and other medical conditions.

When Should You Contact a Doctor After the Procedure?

Medical attention should be sought promptly if you develop:

• High fever

• Chills

• Severe or worsening pain

• Persistent vomiting

• Very little or no urine

• Heavy or worsening bleeding

• Severe weakness

• Confusion

• Rapid deterioration

Fever with urinary obstruction after stone treatment can indicate a serious infection and requires urgent assessment.

Who Performs Endoscopic Kidney Stone Removal?

Endoscopic kidney stone procedures such as ureteroscopy and RIRS are generally performed by urological surgical specialists.

A nephrologist may be involved when the patient has:

• Reduced kidney function

• Chronic kidney disease

• Electrolyte abnormalities

• Recurrent stone-related kidney problems

• Complex medical conditions

Nephrology and urology may work together when both kidney-function management and a structural urinary procedure are required.

Endoscopic Kidney Stone Evaluation at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized kidney evaluation for patients with stones and associated renal problems.

Depending on the patient's condition, evaluation may include:

• Kidney-function assessment

• Creatinine and eGFR review

• Urine examination

• Review of ultrasound or CT scans

• Assessment of urinary obstruction

• Evaluation of recurrent stones

• Infection assessment

• Metabolic stone-risk evaluation

• Medical management of associated kidney disease

• Coordination with urological specialists for endoscopic stone removal when indicated

• Follow-up kidney care after stone treatment

The recommended treatment depends on stone size, location, number, composition or density, obstruction status and the patient's overall health.

Frequently Asked Questions

What is endoscopic kidney stone removal?

It is a minimally invasive technique in which an endoscope is passed through the urinary tract to reach and treat a kidney or ureteral stone. Laser lithotripsy may be used to fragment the stone.

Is kidney stone removal by endoscopy safe?

Endoscopic stone treatment is commonly performed, but every procedure has potential risks. The risks depend on the stone, urinary anatomy, infection status and the patient's medical condition.

Is laser treatment the same as endoscopic kidney stone removal?

Laser treatment is often performed through an endoscope. The endoscope provides access to the stone, while laser energy can be used to fragment it.

What is the difference between URS and RIRS?

URS refers to ureteroscopy and can be used to treat stones in the ureter and selected kidney stones. RIRS specifically uses flexible ureteroscopy to reach stones within the kidney.

Will I need a stent after ureteroscopy?

Not every patient requires a stent. A temporary stent may be placed when the doctor believes it will support urine drainage or help during recovery.

Can a large kidney stone be removed endoscopically?

Some larger stones can be treated with flexible ureteroscopy, sometimes in staged sessions. However, PCNL may be considered for larger or complex renal stone burdens.

How long does endoscopic kidney stone removal take?

Procedure duration varies according to stone size, number, location and complexity. There is no single operating time that applies to every patient.

Can kidney stones come back after endoscopic removal?

Yes. Removing a stone does not eliminate the metabolic or dietary factors that may cause new stones. Preventive evaluation can help reduce recurrence risk.

Conclusion

Endoscopic kidney stone removal provides a minimally invasive way to access and treat selected stones in the ureter and kidney.

Depending on the location and characteristics of the stone, treatment may involve ureteroscopy, flexible ureteroscopy, RIRS and laser lithotripsy. Larger or complex renal stones may require PCNL or a staged treatment strategy.

Before treatment, imaging, urine testing and assessment of kidney function help determine the safest approach. Infection and obstruction also need particular attention because an infected obstructed urinary tract can require urgent drainage.

After stone removal, follow-up is important not only to confirm stone clearance but also to identify factors that may contribute to future stone formation.

For kidney-function assessment and individualized stone-related renal care, consult Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic. When endoscopic or surgical stone removal is appropriate, coordination with a qualified urological specialist may be recommended.

Medical Disclaimer

This article is intended for general educational and informational purposes only and should not be considered a substitute for professional medical advice, diagnosis or treatment. The appropriate method of kidney stone removal depends on stone size, location, number, density, anatomy, infection status, obstruction and the patient's overall health. Endoscopic procedures, laser lithotripsy, RIRS, ESWL and PCNL have different indications and potential risks. Do not delay treatment for an obstructed or infected urinary tract or attempt to remove a stone using unprescribed medicines or home remedies. Seek urgent medical attention for fever or chills, severe worsening pain, persistent vomiting, very little or no urine, heavy bleeding, confusion or rapidly worsening symptoms. Consult Dr. Sandip Prabhakar Bhurke or another qualified healthcare professional for individualized evaluation and treatment.