Kidney biopsy?
Answers: ask a doctor!.. anything to nil..
blood clots are a possibility you do not want to delay finding out if own. this is life threatening if avoid..
Residual dull pain..
I think that is to say something to ask your doctor.. It could be something totally different. I have problems beside my kidneys too and i usually have the throbbing on my sides. Maybe its pain associated near going to the bathroom. For surely call a clinic resembling a 24hour nurse line if you hold one.
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