I just found this site and thought a good place to ask since my drs don't really know. Anyway, I am a 39 yr old woman and was dx'ed with MSK probably 12 yrs ago or so. I have pretty much always had hundreds of stones in both kidneys, (not an exaggeration) I would always pass 1 or 2 stones a year with no problem. I believe my ureter is actually larger cause I can urinate a fairly large stone and I don't really feel it, I will feel it a day or so prior in my flank but usually not too bad a pain. Only once about 5 yrs ago did I have one too large and was in the hospital for lithotripsy and a stint. My question is. In like the past 6 -12 months I have really been passing a lot more stones more frequently. The way I understand MSK is that because of them being like sponges, where there are holes or pockets in the kidneys, urine will sit and form stones there instead of the urine just flowing through. And that even if we removed all the stones, more would just form because of them being like that. Please correct me if I am not right but this is what I was told. I drink LOTS of water but can't understand why all of the sudden I am passing more stones than ever before. X-rays from like 5 yrs ago and this week still show the hundreds of stones but the more recent one shows "more than before and larger stones". I was in the ER a week ago because of severe pain from them as I had a more than 2 inch stack of stones going through me that I had to have to be blasted twice this week. My citrate levels are low and I know that can cause stones to form but just don't get why they are now moving through me more and not staying put in the kidney where they have been for years. Any help or thoughts would be great. I also have Renal Tubular Acidosis, Lupus, Sjogrens, and a few other minor things.