Conversation: The conversation between human and AI assistant.
[|Human|] Does both kidneys function or only one of the kidney function, y do I feel the pressure from the left side since few weeks, before I always used to feel pressure on my right side. More over my left kidney pains after urination, its a very dull pain though.
[|AI|]  Hi, Usually both kidneys function unless one of them is diseased. A dull pain in the kidney area needs to be investigated further. This can be better visualized by doing an ultrasound scan of abdomen. There are many organs other than kidneys which can be associated with a dull pain. However since you are saying that the pain is after urination over the left kidney area, it is important to look for any small stones in the region of left kidney or ureter which can be causing the pain. Spleen is another organ above the left kidney which can cause pain when enlarged.