Which finding may indicate an incisional wound infection?

An increase in local pain is a significant indicator of a potential incisional wound infection. When an infection occurs, the body responds by triggering inflammatory processes, which can lead to heightened pain in the affected area. This pain may be accompanied by other signs of infection, such as redness, swelling, and warmth. The sensation of increased pain is often one of the earliest signs that something may be wrong with the healing process of a wound.

In contrast, a decrease in serosanguineous drainage typically signifies improved wound healing rather than infection, as it indicates that the body is effectively managing fluid within the wound. Improved incision approximation suggests that the wound edges are coming together properly, which is a positive sign of healing. A decrease in body temperature might indicate stabilization of the systemic condition rather than infection, as fever is generally associated with systemic inflammation due to microbial invasion. Therefore, increased local pain specifically aligns with the signs of an incisional wound infection, making it the most relevant finding in this context.