The kidneys filter wastes from the blood and make urine. When the blood vessels that supply the kidneys with blood narrow, it’s called renal artery stenosis. The narrowing lowers the amount of blood flowing to one or both kidneys. Problems in both can lead to
The kidneys control blood pressure. They help make sure the body has enough oxygen and blood. Narrowing causes blood pressure to go up.
High blood pressure
is a leading cause of
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