What is a sign of infection in a soft-tissue injury?

Warmth and swelling around a wound are indeed signs of infection in a soft-tissue injury. When the body encounters an infection, the immune response triggers inflammation, which typically manifests as increased blood flow to the area. This process causes the affected tissue to feel warm to the touch. Swelling occurs as fluids and immune cells accumulate at the injury site, further indicating that the body is attempting to fight off an infection.

In contrast, increased pain without redness might indicate a variety of issues, but does not necessarily confirm infection since it lacks the characteristic inflammation signs such as warmth and swelling. Bleeding that stops after a short time is a normal aspect of the body’s healing response and does not indicate infection. Dryness of the surrounding skin also does not relate to infection; instead, it may suggest a lack of moisture or adequate wound care, but not necessarily the presence of infectious agents. Hence, the sign of warmth and swelling serves as a clear indicator of an underlying infection requiring attention.