MY bad back was AGGRAVATED BY (not caused by) kidney problems. I had a bad back LONG before I had kidney problems.
My kidneys failed in 2008, and my back got WORSE, I got a kidney transplant in 2009. My back is BETTER but not "good". My own kidneys have literally dried up like prunes (atrophied)!
Still, I'd rather have the bad back than be DEAD from the failed kidneys!
Kidney failure is when your kidneys ... uhh ... fail.
You kidneys filter POISONS out of your blood. These poisons come from your natural digestion process. The food you eat is digested, and sometimes toxic chemicals are released. Your kidneys filter the poisons out and you release them in your urine. OH YEAH -- Kidneys ALSO take out excess water from your blood! [The Adrenal Glands are connected to the kidneys. The Adrenel Glands determine how much Red Blood Cells your body makes. If your kidneys fail the Adrenals usually fail, and you end up with anemia, too.]
If your kidneys FAIL, then these poisons do not get filtered out. As they build up in your system you feel worse and worse. When the kidneys FAIL, you have about 3 days to live, unless you get dialysis.
IF the doctor thinks that you are a good patient (you don't smoke, you don't drink, you don't use illegal drugs, and you don't have another serious disease like cancer) then you COULD be put on the Transplant Waiting List. UNTIL they find a new kidney to transplant, you will need Dialysis to keep you alive.
The NORMAL wait for a new kidney is about 30 months (two-and-one-half-years)