Is Surgery Required for Kidney Stones? What Type of Surgery is the Best Option?

By Dr. Francis Sridhar Katumalla – Senior Consultant Urologist, Kidney Transplant Surgeon, Robotic Surgeon & Andrologist at KIMS Hospitals, Kondapur, Hyderabad

Kidney stones are a common yet painful urological condition affecting millions of people worldwide. Someone who has experienced the sharp, cramping pain in the back or side caused by a stone, will understand : “Why is a surgery required for kidney stones?” and “What type of surgery is the best option ?

Many patients are anxious about the idea of surgery. This blog aims to clarify when surgery is truly needed and what types of procedures are currently available to treat kidney stones safely and effectively.

When Is Surgery Required for Kidney Stones?

Not all kidney stones require surgery. Many small stones (typically less than 5 mm) pass on their own through the urinary tract with increased fluid intake, pain management, and medical expulsive therapy.

However, surgical intervention becomes necessary in the following scenarios:

Stone Size Is Large
Stones larger than 6–7 mm often do not pass spontaneously and may block urine flow, causing infection or damage to the kidney.
Uncontrolled Pain
If the patient experiences severe or persistent pain not relieved by medication, surgery may be required.
Infection or Fever
Stones causing urinary tract infections or fever need urgent attention, often with drainage followed by stone removal.
Hydronephrosis
If a stone obstructs the urinary tract and causes swelling of the kidney (hydronephrosis), surgical removal is recommended.
Recurrent Stones or Multiple Stones
Patients with recurrent episodes or multiple stones may benefit from a definitive surgical treatment.

Types of Surgical Options for Kidney Stones

The type of surgery depends on several factors including the size, location, number of stones, anatomy of the urinary tract, and patient health. Below are the most common procedures:

1. Ureteroscopy (URS) with Laser Lithotripsy

What it is: A thin scope is passed through the urethra and bladder into the ureter. Stones are visualized and broken with a laser, and fragments are removed.
Best for: Stones in the ureter or kidney, particularly those that are not ideal for ESWL.
Advantages: High success rate, no external incisions, can treat complex stones.
Limitations: May require placement of a temporary stent.

2. Percutaneous Nephrolithotomy (PCNL)

What it is: A small incision is made in the back to access the kidney directly. A nephroscope is used to remove large or multiple stones.
Best for: Large stones (>2 cm), staghorn calculi, or stones resistant to other treatments.
Advantages: Highly effective for large stones in a single session.
Limitations: Invasive, requires hospital stay and anesthesia.

3. Mini-PCNL / Ultra Mini-PCNL

What it is: A less invasive version of standard PCNL using smaller instruments.
Best for: Medium-sized stones where URS or ESWL may not be ideal.
Advantages: Less bleeding, faster recovery, good for selected cases.
Limitations: May not be suitable for very large or complex stones.

4. Robotic or Laparoscopic Stone Surgery

Though rarely needed, robotic or laparoscopic surgery is sometimes performed in special situations such as anatomical abnormalities or in conjunction with other procedures. These techniques allow stone removal through small incisions with minimal trauma and quick recovery.

Conclusion: Surgery Is Not Always the First Step, but It’s Safe and Effective When Needed

The decision to opt for surgery depends on multiple factors. Fortunately, with advances in technology and surgical techniques, most kidney stone surgeries today are minimally invasive, safe, and highly successful.

If someone is suffering from recurrent pain, infections, or known kidney stones, consult a urologist at an early stage. Timely evaluation can prevent complications and help choose the best treatment suited for the condition.

Remember, early intervention leads to faster recovery and prevents kidney damage.