A nephrologist is a medical doctor who specializes in diagnosing and treating diseases related to the kidneys. They manage conditions such as chronic kidney disease, kidney stones, and hypertension. Nephrologists often work closely with patients who require dialysis or kidney transplants, providing ongoing care and support. These specialists use various tests, including blood and urine tests, to assess kidney function. They also educate patients about lifestyle changes that can help protect kidney health. Nephrologists play a crucial role in the overall management of kidney-related issues, ensuring patients receive comprehensive care tailored to their needs.