I only had them once 13 years ago. I had an upper respritory infection ( I thought it was just a cold, silly me) and continued to work out at the gym...while sucking on a Hall's menthol cough drops. I dehydrated my body so much, I ended up with them shortly afterwards.
Never *crosses fingers* had them again. =)
fun facts:
http://en.wikipedia.org/wiki/Kidney_stone
Causes
Kidney stones can be due to underlying metabolic conditions, such as renal tubular acidosis, Dent's disease and medullary sponge kidney. Many health facilities will screen for such disorders in patients with recurrent kidney stones. This is typically done with a 24 hour urine collection that is chemically analyzed for deficiencies and excesses that promote stone formation.
I'm surprised, mayo Clinic has much less info than wiki!! /boggle:
http://www.mayoclinic.com/health/kidney-stones/DS00282
'Some of the underlying causes of kidney stones can be treated to prevent new stones from forming.'
My stones passed without being collected, so I never had them analyzed. Doc said cheese, chocolate and coffee can cause them, so limit intake. The only change I made was to stop drinking ice tea as much. cheese 4 life!!!
Anyway, most females get UTI though, not chronic kidney stones. If she doesn't, she needs to drink alot of cranberry juice. And if she's not on strong meds, she'd be screaming in pain. I know I did in the ER and then passed out. A quick way to get a bed there.