They will tell you what's causing the damage to the kidney, if there is any. I'm assuming the radiologist or whoever was doing the ultra sound didn't tell you about the damage since that is not in their province. You looked at it and determined yourself ? If there is any damage you will find out from your Doc-you can also access the ultra sound report by yourself via your computer. All facilities have that availability. If there is damage it could be from several things. Here is a sample list: blood clot in or around your kidneys. infection. an overload of toxins from heavy metals. drugs and alcohol. vasculitis, an inflammation of blood vessels. lupus, an autoimmune disease that can cause inflammation of many body organs. Unless an oncologist says it is cancer I wouldn't jump on that diagnosis until then. But there are plenty of treatments available for a failing kidney. Finally, you can live with one kidney. My mom did for roughly 35 years. She died at 93. You would just need to be careful when it comes to diet and especially alcohol.
Now all that will be $500.please.