Quote Originally Posted by killerweed420
There are been no reports of any kind of kidney problems with cannabis.

However, there are no case reports of nephropathy associated with marijuana smoking. (Transplant Proc. 2007 Dec;39(10):3054-6.)
Department of Nephrology, Transplantology and Internal Diseases, Pomeranian Medical University, Szczecin, Zachodniopomorskie, Poland. [email protected]

ne·phrop·a·thy (n-frp-th)

A disease or abnormality of the kidney.

Just in case someone says otherwise, I'd like to back you up.