Can kidneys repair themself after they shut down?

Kidneys have a limited ability to recover after an acute shutdown or injury, particularly if the damage is not severe and the underlying cause is addressed promptly. In cases of acute kidney injury (AKI), many patients can experience partial or complete recovery, especially with appropriate medical intervention. However, chronic kidney disease (CKD) involves progressive damage that is generally irreversible. Once kidney function declines significantly, it may lead to long-term complications and require treatments like dialysis or transplantation.