Nephrology is a branch of medicine that specializes in the study and treatment of the kidneys. Nephrologists are medical professionals who diagnose and manage kidney disorders, such as chronic kidney disease, kidney stones, kidney infections, and kidney failure. Nephrologists use a variety of diagnostic tests and treatments, including blood tests, imaging studies, and surgery. They also work closely with other healthcare professionals, such as urologists, endocrinologists, and cardiologists, to provide comprehensive care for patients with kidney problems.