Bladder stones are small masses that develop in the bladder, usually when the urine becomes concentrated. This article explains how and why they form.

A bladder stone the size of a baseball—and with growth rings inside it just like a tree trunk—was spotted inside a 72-year-old woman. The woman, who has been paralyzed from the chest down for ...

Doctors discovered a huge bladder stone, as big as a baseball, when performing an ultrasound on a 72-year-old woman who was in pain and had developed blood in her urine ...

Bladder stones are hard lumps of minerals that can form inside the bladder when it's not completely empty of urine, the NHS explains. In some cases, when they are small enough to be passed out of ...