Hi adn wecloemt.
Nothing should be done. These are only mild chronic kindey changes due to ageing. There is no need to be wrorried if your urea and creatinine
levels are normal and you dont have any symptoms. Those 2 cysts are small and it shouldnt cause any prbolems. You should just do annual checj up by ultrasounds fo its size following and if it shows rapid grow or signs of malignancy it shoud be surgically removed. From this, it seems like to be simple,benign cortical cyst
. WIsh you good health.