What is a common example of a closed wound?

A bruise is indeed a common example of a closed wound. This type of wound occurs when small blood vessels are damaged or broken due to trauma or impact, causing blood to leak into the surrounding tissue without breaking the skin. The result is a discoloration that can vary in intensity and can change color as it heals over time.

In contrast, a laceration is a type of open wound where the skin is cut, while a puncture involves a small hole made by a sharp object penetrating the skin. An avulsion refers to an injury where a portion of skin or tissue is forcibly detached, leading to significant tissue loss. These other types of wounds generally involve some level of skin breakage, distinguishing them from a bruise, which remains closed.