Dec 2011 i overdosed on 17 aleve (naproxen) pills. i got pregnant in july 2012 and i got hydronephrosis in my left kidney. symptoms were gross hematuria on august 2012. could the pills have caused this?

Hydronephrosis: It is unlikely that the aleve (naproxen) effect on kidneys would result in a delayed hydronephrosis.

No: Hydronephrosis is common during pregnancy, more on the right than left. Could also be due to a kidney stone if there is associated pain. If you have continued to take aleve (naproxen) or another pain medication, you could have bleeding from your kidney from that. Sometimes a clot in the ureter tube could cause pain and hydronephrosis as well.