Bilateral renal artery stenosis. my left kidney getting smaller day by day. what should i do?

Interventional XR Dr: At your age more likely due to fibromuscular dysplasia than arterio or athero-sclerosis. An experience interventional radiologist might be successfully able to dilate and stent stenotic arteries. Worth researching the best local facilities +/or consider second opinion at a major medical center such as mayo or cleveland clinics or in a major city. Good luck.