What is a common sign of an open fracture that differs from closed fractures?

When considering the characteristics of open fractures, visible bone is a definitive indicator that sets them apart from closed fractures. An open fracture, also known as a compound fracture, occurs when the broken bone pierces through the skin, leading to a clear external wound and the exposure of the bone itself. This situation carries a higher risk for complications such as infection due to the open nature of the injury.

In contrast, closed fractures do not break the skin and, although they may exhibit signs such as swelling, bruising, and pain, the bone remains beneath intact skin, making visibility of the bone impossible in such cases. The presence of visible bone is a critical factor in diagnosing open fractures, underscoring the need for immediate medical attention to prevent potential severe complications.