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:
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: