Root Cause Analysis (RCA) is a structured technique used to identify the underlying cause of problems. It involves defining the problem, finding the cause, and charting a solution. The process typically includes determining what happened, why it happened, and what can be done to prevent reoccurrence. RCA aims to address the real cause of problems rather than just the symptoms. One common technique in RCA is the "5 Whys" method, which involves repeatedly asking "Why?" until the root cause is identified. RCA benefits organizations by helping improve processes, create lasting solutions, and develop a roadmap for thorough understanding. However, its limitations include assuming a single source of problems when in reality issues can have multiple interconnected causes.