What you would experience with the failure of one kidney is related to the cause of that afailure. If a blood clot blocked the artery to the kidney or a stone prevented the urine from reaching your bladder, then you would most likely have pain on that side in the back. If the kidney was slowly damaged, say by long standing obstruction or high blood pressure, then you probably would not have any symptoms as long as your other kidney was working well. In most situations where there is one good kidney, it can handle the extra work without giving you any sign that it is doing so. The blood coursing through the non-functioning kidney does not cause any problems.
Of course, if both kidneys are damaged, then you may start feeling quite ill, note a decrease in the amount of urine that you are making, but still not have any specific symptom such as pain to let you know what is happening.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.