Kidney stones are an age-old medical problem.
Some kidneys just make stones, and medical science doesn't have all the answers about exactly why they do. We do know that there are certain conditions and chemical imbalances that contribute to the creation of stones, but we really don't know how to stop them completely. In fact, new research is making us rethink everything we thought we knew about them. Click here to read some exciting new developments in kidney stone research. Kidney stones really do hurt.