What defines a contused wound?

A contused wound is defined as a bruise, which occurs when small blood vessels break under the skin's surface due to impact or trauma. The resultant collection of blood causes discoloration, swelling, and tenderness in the affected area. This type of wound does not break the skin but signifies injury to underlying tissues, which is characteristic of contusions.

The other options pertain to different types of wounds. A lacerated wound refers to a tear or cut that typically has jagged edges, which distinguishes it from a contusion. A wound with jagged edges further emphasizes the irregularity and depth of cuts found in lacerations, unlike the uniformity of bruising in contusions. An open cut, which breaches the skin's surface, involves a different healing process and susceptibility to infection, contrasting with the closed nature of a bruise. Understanding these definitions helps clarify the unique nature of contusions and their implications in skincare and treatment practices for estheticians.