This document contains information from Dr. Vijayant Gupta about kidney stones. It discusses preventing kidney stone surgery through diet and lifestyle changes. It describes what kidneys are, why they are important, and what happens if they fail. It covers how stones can damage kidneys and the problems associated with having one kidney stone. It also discusses the types of stones, how they form, and how to identify the stone type. Treatment options discussed include diet and medication, as well as surgery options like ESWL and PCNL.