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Kidney Stones4 min read

When Should Kidney Stones Be Removed?

Not every kidney stone needs surgery — but some shouldn't be left alone. A clear guide on which stones can pass naturally, and when removal protects your kidney function.

By Dr. Aviral Srivastava · Regency Multispeciality Hospital

Not all kidney stones require immediate surgery. Some small stones may pass naturally, while others need intervention to prevent pain, infection, or kidney damage.

Stones that may pass naturally

Very small stones, usually less than 5 mm, may pass with:

  • Adequate hydration
  • Pain medications
  • Medical expulsive therapy

When should stones be removed?

Stone removal is usually advised when there is:

1. Severe pain

Repeated painful episodes affecting daily life.

2. Obstruction

Blocked urine flow causing swelling of the kidney.

3. Infection

Stones associated with fever or infection can become dangerous.

4. Large stone size

Larger stones are less likely to pass naturally.

5. Recurrent symptoms

Repeated urinary infections or bleeding.

6. Decline in kidney function

Delayed treatment may damage kidney function.

What are the treatment options?

Treatment depends on stone size and location. Options include:

  • Medical therapy
  • ESWL (shock wave therapy)
  • URSL
  • RIRS
  • PCNL

Is delaying treatment risky?

Yes. Untreated stones may lead to:

  • Persistent pain
  • Recurrent infections
  • Kidney swelling
  • Loss of kidney function

Final words

Kidney stones should be evaluated individually. Early consultation helps determine whether observation or minimally invasive treatment is the safer option.

This article is for general awareness only and is not a substitute for individual medical advice. Please consult a urologist for evaluation specific to your case.