Which injury is caused by a blunt object with no skin break?

• A. Blunt trauma
• B. Penetrating trauma
• C. Laceration
• D. Abrasion

Answer: (A)

Blunt trauma is caused by a non-penetrating force that injures tissues without breaking the skin. When a blunt object strikes the body, energy is transferred to underlying tissues, potentially causing bruising, swelling, internal injuries, or fractures while the skin remains intact. In contrast, penetrating trauma involves an object breaking the skin and entering the body; a laceration is a tear with skin loss or irregular edges from a sharp object; an abrasion is a superficial scrape that removes the outer skin layer. So the scenario described fits blunt trauma.