A surgical site infection (SSI) occurs when bacteria enter the body through a surgical wound, leading to infection. These infections can develop on the skin, in the tissues, or deeper within the body, depending on the type of surgery performed. Symptoms may include redness, swelling, pain, and discharge at the surgical site. Preventing SSIs is crucial for patient safety and recovery. Common strategies include proper hand hygiene, using sterile instruments, and administering antibiotics when necessary. Healthcare providers closely monitor patients for signs of infection to ensure prompt treatment and reduce complications related to surgery.