What does it mean if a wound is described as "infected"?

A wound is considered "infected" when it shows signs of bacteria and inflammation. In the context of wound healing, infection can manifest through various clinical indicators, including redness, heat, swelling, pain, and purulent drainage. The presence of bacteria can disrupt the healing process, potentially leading to further complications. This description emphasizes the importance of monitoring wounds for signs of infection to ensure prompt treatment and support optimal healing.

Regarding the other options, simply being exposed to air does not indicate infection; it is a normal aspect of wound management. A wound that is healing well should not exhibit signs of infection. Lastly, scab formation is part of the natural healing process and does not denote infection on its own without accompanying inflammatory signs.