Healthcare-associated infections (HAIs) are infections that patients can acquire while receiving medical treatment in healthcare settings, such as hospitals or nursing homes. These infections can occur in various parts of the body and may be caused by bacteria, viruses, or fungi. Common types of HAIs include surgical site infections, pneumonia, and urinary tract infections. Preventing HAIs is crucial for patient safety and involves practices like proper hand hygiene, sterilization of medical equipment, and careful monitoring of patients. Healthcare providers work to reduce the risk of HAIs through infection control measures and by educating staff and patients about the importance of cleanliness and safety in healthcare environments.