What is a complication commonly associated with contusions?

In the context of contusions, pain and swelling are indeed common complications. Contusions, or bruises, occur when blood vessels are damaged due to trauma, leading to bleeding beneath the skin. This trauma not only causes localized bleeding but also results in associated pain and swelling in the affected area.

The pain arises from the inflammation and irritation of the soft tissue, while swelling is a direct response to the accumulation of blood and fluid in the injured area. This is a natural response as the body works to repair the damaged tissue. The severity of pain and swelling can vary depending on the extent of the contusion and the amount of trauma sustained.

While other options might pertain to different types of injuries or complications associated with musculoskeletal trauma, they are not the direct complications associated with contusions as specifically as pain and swelling are.