Kidney stones: treatments and when to intervene
Reviewed on July 17, 2026
A kidney stone is a solid formation that can develop in the kidneys or urinary tract and cause intense pain when it moves. Many stones pass on their own, but some require procedures. This article gathers general, educational information about causes, warning signs and treatment options, keeping in mind that the best approach depends on each person and on the size and location of the stone.
Why stones form
Stones develop when substances in the urine, such as calcium and uric acid, become concentrated and crystallize. Low water intake, diet and hereditary factors can favor this process.
Knowing the type of stone helps guide prevention, since not all stones have the same composition.
Symptoms and warning signs
The pain is usually strong, in the lower back or flank, and may radiate to the lower abdomen. There may also be blood in the urine, nausea and a frequent urge to urinate.
Fever, chills or difficulty urinating are signs that deserve urgent evaluation, as they may indicate infection or obstruction.
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Request a second opinionFrom pain control to procedures
Small stones are often passed with hydration, pain relief and sometimes medication that eases their passage. Imaging follow-up helps monitor progress.
When a stone is large, causes obstruction or does not pass, options include shock waves, endoscopy and other techniques. The choice considers size, location and overall health.
Why a second opinion helps
If you have repeated attacks or have been offered a procedure, a second opinion can help you understand whether there are alternatives and how to prevent new stones.
Another specialist can review your imaging and laboratory tests and suggest adjustments to the investigation and prevention, always in an individualized way.
Frequently asked questions
Does every kidney stone need surgery?
No. Many small stones pass naturally with hydration and medication. Procedures are usually indicated for larger stones, obstruction or pain that does not improve.
Does drinking more water help prevent new stones?
Good hydration is one of the most cited measures to reduce risk, but the best prevention depends on the type of stone and your profile, so it is worth talking to a specialist.
How do I submit my case for a second opinion on Revidra?
You simply upload your imaging exams and reports to the Revidra platform. An independent specialist reviews the material and returns a structured written opinion about your case.
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Request a second opinionEducational content, for informational purposes. It does not replace consultation, diagnosis or treatment with a physician, nor does it constitute a teleconsultation or emergency care.