S. saprophyticus, or *Staphylococcus saprophyticus*, is a type of bacteria commonly found in the environment, particularly in soil and water. It is part of the normal flora of the human body, often residing in the urinary tract and skin. This bacterium is known for its role in urinary tract infections (UTIs), especially in young women. While *S. saprophyticus* is generally not harmful, it can cause infections when it enters the urinary system. It is resistant to certain antibiotics, making treatment more challenging. Understanding this bacterium is important for effective diagnosis and management of UTIs, distinguishing it from other pathogens like E. coli.