Hospital Acquired Infections (HAIs) are infections that patients can get while receiving treatment for other conditions in a healthcare facility. These infections can occur in various parts of the body, including the bloodstream, lungs, and surgical sites. Common types of HAIs include pneumonia, urinary tract infections, and surgical site infections. HAIs are often caused by bacteria, viruses, or fungi that are present in the hospital environment. Factors contributing to these infections include the use of catheters, ventilators, and surgical procedures, which can introduce pathogens into the body. Preventive measures, such as proper hand hygiene and sterilization practices, are essential to reduce the risk of HAIs.