Who works on the kidney--urology and nephrology?

Nephro vs urol. Urologist take kidneys out with surgery....Nephrologist use medicine to effect kidney function...Sometimes get biopsies of kidney, but no surgery by nephrologitst....
Some crossover. Urologists are surgeons. Nephrologists are internists who specialize in the medical aspects of kidney diseases. Both evaluate hematuria, kidney stones, kidney tumors. Urologists address disease mostly through surgical procedures, nephrologists through medical manipulation.
Both. Urologists typically handle surgical issues of the kidney while nephrology is more involved with filtration & hormonal kidney issues.
Both. Urology works on the structure and plumbing. Nephrology works on filtering function.
Nephrologist. Most kidney diseases are manged by nephrologists. If they is any surgical intervention needed then urologists get involved.