Kidney stones last days to weeks as they pass from the kidney down the urinary tract. This article explains what affects how ...

Robert Glatter is a New York-based physician covering public health. Kidney stones--often the size of a sand grain--are one of the most painful conditions that people may experience in their lifetime.

Kidney stones are hard objects made from chemicals in your pee. They may be as tiny as a grain of salt or as big as a corn kernel. The stones can be brown or yellow, smooth or rough. They're a ...

Have you ever had a kidney stone? I have heard numerous times it is as painful as being in labor. Yet not all stones cause ...