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Your doctor has said the stone won't pass on its own. Now you are hearing three names. Here is what each treatment means, who it suits, and what recovery looks like.
Small kidney stones often pass with water, medicines and time. Bigger stones, or stones that block urine or cause repeated pain, usually need a procedure. (Not sure if yours can pass? Read Can Small Kidney Stones Pass Naturally?)
Today, most kidney stones are treated without a big cut. The three most common options are ESWL, RIRS and PCNL. Each one works best for a certain type of stone. The right choice depends on your stone’s size, where it sits, how hard it is, and your general health.
At a glance
| ESWL | RIRS | PCNL | |
|---|---|---|---|
| How it works | Shock waves from outside the body | Thin scope through the urine passage + laser | Small keyhole in the back |
| Any cut? | No | No | Yes, about 1 cm |
| Best for | Small kidney stones, usually under 1–1.5 cm | Stones up to about 2 cm, including hard-to-reach ones | Large stones, usually over 2 cm |
| Anaesthesia | Mild sedation or none | General or spinal | General |
| Hospital stay | Usually go home the same day | Day care or 1 night | Usually 2–3 days |
| Sessions | May need more than one | Usually one | Usually one |
| Back to routine | 1–2 days | 2–3 days | 1–2 weeks |
These are general ranges. Your urologist will advise what suits your stone.
ESWL stands for Extracorporeal Shock Wave Lithotripsy. “Extracorporeal” means from outside the body.
You lie on a special table. A machine sends focused shock waves through your skin to the stone. The waves break the stone into tiny pieces. Over the next few days or weeks, the pieces pass out with your urine.
What to expect: Mild pain or blood in the urine for a few days is common as the pieces pass. Some patients need a second session.
RIRS is often called laser stone surgery. A very thin, flexible camera tube (ureteroscope) is passed through the natural urine passage, up the bladder and into the kidney. No cut is made on the body.
Once the doctor can see the stone on the screen, a laser breaks it into dust or small pieces. Tiny pieces can be removed with a small basket. The rest pass out in the urine.
Most patients go home the same day or the next day. A small soft tube called a DJ stent is often left inside for 1–2 weeks to help urine drain while the kidney heals. You may feel some urge to pass urine or mild discomfort while the stent is in. A short, simple procedure removes it later.
Read next: What to Eat After Kidney Stone Laser Surgery
PCNL is the preferred treatment for large kidney stones. The surgeon makes a small cut, about 1 cm, in your back. Through it, a tube is passed straight into the kidney. The stone is broken and removed through this tunnel.
A smaller version called mini-PCNL uses an even thinner tunnel. Your urologist will tell you which version suits you.
A hospital stay of about 2–3 days. A small tube may be left in the back or a stent inside for a short time. Most people return to light work in 1–2 weeks.
As a simple guide:
ESWL or RIRS. Very small stones may even pass with medicines.
RIRS is often preferred. ESWL may work if the stone is soft and well placed.
PCNL is usually the best choice.
Usually treated with ureteroscopy, a procedure similar to RIRS.
Your urologist will also think about:
A CT KUB scan is the most useful test for planning. It shows the stone’s exact size, position and density.
RIRS and PCNL are done under anaesthesia, so you feel nothing during the procedure. ESWL may cause mild discomfort, managed with pain medicine or light sedation.
After any procedure, some pain, a burning feeling while passing urine, or a little blood in the urine for a few days is normal.
Call your doctor if you have fever, chills, severe pain, or are unable to pass urine. Sanyra Hospital’s 24/7 emergency: 080 2991 7599
Yes. Many people form stones again within a few years if nothing changes. After treatment, your doctor may test the stone to find out what it is made of. The result helps plan the right diet and fluid intake to prevent new stones.
Learn more: Why Do Kidney Stones Keep Coming Back? and Post Kidney Stone Surgery Care
Cost depends on the procedure, the stone’s size, the number of sessions and the length of stay. At Sanyra Hospital, eligible patients can get kidney stone treatment free under Ayushman Bharat–Arogya Karnataka. Ask our team to check your eligibility before treatment.
For small, soft stones, ESWL avoids anaesthesia and any instrument inside the body. RIRS usually clears the stone in one session and works better for hard stones or stones in the lower kidney.
No. RIRS uses no cut. It is done through the natural urine passage, and most patients go home within a day.
Usually 1–2 weeks after RIRS, though your doctor may advise a different time. Never leave a stent in longer than advised.
For stones larger than about 2 cm, PCNL clears the stone faster and more completely than RIRS, often in one sitting.
Some small stones pass with water and medicines. Stones that are large, blocking urine, causing infection or repeated pain need treatment.
At Sanyra Hospital, Dr. Rajendra Prasad KN (MCh Urology) and our urology team offer ESWL, RIRS and PCNL under one roof. In-house ultrasound and lab tests mean faster diagnosis and a treatment plan made for your stone.
Medical Disclaimer: This article is intended for general health information and does not replace an examination, diagnosis or treatment plan from a qualified healthcare professional.
Sanyra Hospital is a leading Multi-Speciality Hospital in Kengeri Bangalore and diagnostic centre. With a commitment to providing high-quality healthcare services, it offers a wide range of medical specialties and advanced diagnostic facilities to meet the diverse healthcare needs of the community. We have dedicated urology center & dialysis center.
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