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Symptoms

Very small kidney stones are unlikely to cause many symptoms. They may even go undetected and pass out painlessly when you pee.

Larger kidney stones can cause symptoms, including:

Blocked ureter and kidney infection

A kidney stone that blocks the ureter, the tube that connects your kidney to your bladder, can cause a kidney infection.

This is because waste products are unable to pass the blockage, which may cause a build-up of bacteria.

The symptoms of a kidney infection are similar to symptoms of kidney stones, but may also include:

Find out more about kidney infections