What is sterile sites?

Sterile sites refer to areas of the body that are normally free from microorganisms and pathogens, such as internal organs, blood, and the central nervous system. These sites maintain a sterile environment to prevent infections and support proper physiological functions. In contrast, other areas of the body, like the skin and gastrointestinal tract, are populated with various microbes. When pathogens invade sterile sites, it can lead to serious infections and complications.