How Do U Know If You Have Kidney Failure – If you have only one kidney, that kidney is called a solitary kidney. This condition is different from having a solitary functioning kidney, in which you have two kidneys and only one is functioning.
Some people are born with only one kidney because the other kidney never developed—a condition known as renal agenesis or renal agenesis. A solitary kidney is sometimes diagnosed before birth with a routine prenatal ultrasound. It is sometimes diagnosed later in life after an X-ray, ultrasound or surgery for an unrelated clinical condition.