Which of the following describes a closed fracture?

A closed fracture is characterized by a break in the bone where the skin over the fracture site remains intact. This distinction is crucial as it has significant implications for treatment and management. In a closed fracture, there is less risk of infection compared to an open fracture, where the bone breaks through the skin. Since the skin barrier is maintained, closed fractures typically allow for a more straightforward healing process.

The other options do not accurately describe a closed fracture, making option B the correct choice. The broken skin mentioned in the first option indicates an open fracture, while the third option refers to multiple fractures, which can complicate the injury but still does not define a closed fracture specifically. The fourth option incorrectly suggests that a closed fracture cannot exist if the fracture is present, reinforcing that closed and open fractures are opposites. Understanding these definitions helps in properly assessing and managing bone fractures in first aid scenarios, particularly in a criminal justice context where time and correct diagnosis can be critical.