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FAQs about PKD & Kidney Cysts

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Why Is My Left Kidney Small in Size

My kidneys are very different in size. My left kidney now is 4.5*5.5*5 cm, and right kidney is 12.5*5.5*3 cm. I also have recurrent pain in my left flank, but my family doctor can’t help me manage it. Any opinions?

The Doctor Answered:

You must have known that the normal size of an adult human is about 10-12 cm long, 5-6 cm wide and 3-4cm thick. According to your description, your left kidney has been much smaller than normal kidneys, that is to say, your kidney is shrinking.

What causes kidney shrinkage? It may be a consequence of long-term kidney disorders including congenital factors, kidney infections, renal parenchymal disease, chronic kidney disease, high blood pressure, diabetes, etc. With the shrinkage of kidney, less and less blood will flow into kidneys so that more and more kidney cells fail to work. If left untreated, it is more likely to cause kidney failure.

To stop the shrinking rate of your kidneys, the key is to increase the blood flow and supply enough nutritions for damaged kidney cells. Remember that only if your kidney cells are repaired, it is possible to treat your shrinking kidney.

However, the accurate treatment which is suitable for you should depend on your specific condition. If you haven’t found such a treatment, you can consult the online doctor or send email to my email box:

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