Dehydration and Kidneys Dehydration and Kidneys I have been dehydrating for last 10 years or so. Before that I had kidney stones 3 times in 4 years. These stones came out in urine without any operation. During this period my serum creatinine was 1.0 or higher. I usually dehydrate once in 10-15 days. Dehydration lasts 24 to 36 hours at a time. During this period I usually do not drink any water...