DrFrige...some info:
Calcium stones
These are the most common type of kidney stones. They are made of calcium and oxalate, which are chemicals found naturally in certain foods (see "Prevention", below for examples of these foods). A diet with a high content of calcium and oxalate can increase the concentration of these chemicals in the urine and make it more likely for stones to form. Other factors include:
* excess vitamin D,
* overactive parathyroid glands,
* medical conditions such as cancer, some kidney diseases, or a disease called sarcoidosis.
Uric acid stones
Excess amounts of uric acid can be caused by eating a lot of meat. Conditions such as gout and treatments such as chemotherapy can also increase the risk of getting uric acid stones.---DRFRIGE: Your friend doing atkins?
Struvite stones (infection stones)
These are caused by too much ammonia in the urine. Ammonia is a chemical produced by the bacteria that cause urinary tract infections. This kind of stone is most often found in women.
Cystine stones
These are caused by a hereditary disorder called cystinuria, which affects about one per cent of men and women.
I was also warned by my urologist (I had 2 stoned the size of my pinkie nail in 1990) that tea has also been found to cause uric stones.
Mine turned out to be calcium (my body is a relative calcium heaven...doc says I'll never get osteoperosis) so I've been told to watch the dairy.
As far as the stent and the the stone retrieval, yah...not fun. I can only imagine it being worse for men with all that added, er...dangly stuff.