How is an abrasion defined in terms of injury?

An abrasion is defined as a friction or superficial rub or scrape on the skin. This type of injury occurs when the skin rubs against a rough surface, leading to the removal of the outer layers of the skin without penetrating deeply. Abrasions can occur in various contexts, such as falls, scrapes from objects, or during physical activities, and they typically present as red or raw areas on the skin that may bleed slightly or ooze clear fluid.

Understanding the nature of abrasions is critical for properly assessing injuries, as they often require different care compared to more severe injuries like cuts, punctures, or contusions. This distinction is important not only for first aid treatment but also for understanding potential complications or the need for medical attention.