How to know if my kidneys are working perfectly?

How to know if my kidneys are working perfectly?How to know if my kidneys are working perfectly?

I have some pain in my kidney area from yesterday. The pain is constant and doesnt stop. The pain is average and not that sharp.

I am MALE 18 years old.

How can i know that my kidneys are working perfectly?

Posted by meowmix
I would go get checked by your doc. Kidney problems can be pretty dangerous

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