An infected wound occurs when bacteria, fungi, or other pathogens enter a break in the skin and begin to multiply. This can happen with any type of wound, including surgical incisions, cuts, and abrasions. The risk of infection increases with wounds that are deep, exposed to contaminants, or located in areas with poor blood circulation. Infected wounds can range from mild to severe; if left untreated, they can lead to serious health issues such as cellulitis, abscess formation, or even systemic infections like sepsis.

Recognizing the signs of infection is crucial for timely intervention. Common symptoms include increased redness, swelling, and warmth around the wound, along with pain and tenderness. There may also be discharge of pus or fluid, which can have an unpleasant odor. Additionally, fever and chills may indicate a more serious infection that requires immediate medical attention.