What is the primary result of blunt objects when used against the body?

The primary result of blunt objects when used against the body is the production of lacerations. Lacerations occur when a blunt object strikes the skin and underlying tissue, leading to a tear rather than a clean cut. This tearing effect is characteristic of blunt force trauma and results in irregular wound edges.

In contrast, incised wounds typically result from sharp objects and are characterized by clean, straight edges. Puncture wounds, on the other hand, are caused when a pointed object penetrates the skin but does not tear it significantly, and abrasions are surface-level injuries that occur when the skin is scraped against a rough surface. The nature of blunt force trauma inherently leads to lacerations, making it the correct choice in this context.