When plaque clogs and narrows your renal arteries, it will affect the function of your kidneys. Kidney problems can cause high blood pressure, particularly when the high blood pressure begins suddenly. Similarly, if your blood pressure worsens for no apparent reason or starts before the age of 30 or after 50, it could point to a problem with the kidneys. As a result, atherosclerosis in the renal arteries can cause such severities as renal artery stenosis or kidney failure.

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