Laceration
Definition
A wound torn by blunt or shearing force, characterised by ragged, contused margins and tissue bridges crossing the wound depths. The distinction from an incised wound is clinically and forensically critical.
- Cause
- Blunt or shearing force (not a sharp object).
- Margins
- Ragged, abraded, contused (bruised at the edges).
- Key feature
- Tissue bridges (vessels, nerves) cross the wound base.
Common questions
What's the difference between a laceration and a cut?+
A laceration is torn or split by blunt force, leaving ragged, irregular margins. A cut (incised wound) is made by a sharp object and has clean, regular edges. Forensically, this distinction is critical because it tells you what kind of force caused the injury.
Why do lacerations have those tissue bridges across them?+
When blunt force tears the skin and tissue, blood vessels, nerves, and connective tissue survive the split and remain intact across the wound base. These bridging structures are a hallmark of lacerations and help forensic pathologists confirm how the injury was caused.
How deep can a laceration go?+
A laceration is a full-thickness tear that goes through both the skin and the subcutaneous (fatty) tissue underneath. The depth depends on how much force was applied and what struck the skin.
Related terms
- Abrasion
- A wound where friction or tangential force removes the superficial layers of skin without penetrating the full thickness. Abrasions preserve the direction...
- Contusion (Bruise)
- Blunt-force trauma that ruptures small vessels beneath an intact skin surface. Blood collects in the tissue. Location, size, and shape can indicate...
- Incised Wound
- A wound produced by a sharp-edged implement. Margins are clean, without contusion or bridging. Depth is less than length in a classic...
- Stab (Punctured) Wound
- Wound produced by a pointed weapon where depth is greater than length on the skin; gives the best clue to weapon dimensions.
- Abraded Collar
- 1 to 3 mm rim of grazed skin around a firearm entry wound caused by the bullet stretching and scraping the skin...
- Avulsion
- Tearing away of tissue, leaving a flap or a gap. Avulsions convey information about the direction of force because tissue pulls away...
- Chop Wound
- Combined incised and lacerated injury from a heavy edged weapon (axe, kulhari), often involving underlying bone.
- Defence Wound
- Injury sustained while warding off an attack, typically incised or stab wounds on the palms, fingers, ulnar borders of forearms or back...
- Grievous Hurt
- Hurt falling within any of the eight clauses of BNS 2023 Section 116 (emasculation, vision loss, hearing loss, member or joint deprivation,...
- Injury
- Any harm whatever illegally caused to a person in body, mind, reputation or property (BNS 2023 Section 2(14), carrying forward IPC Section...
- Patterned Injury
- A wound whose shape reflects the object that caused it, such as a bite leaving individual tooth impressions, a cord leaving parallel...
- Simple Hurt
- Any hurt that does not fall within the eight clauses of grievous hurt under BNS 2023 Section 116; punishable under Section 115.
Explained in these topics
- Injuries and Wounds: Types, Medicolegal Importance and Gunshot WoundsTearing or splitting of skin and soft tissue by blunt force, with irregular margins and bridging tissue (vessels, nerves) across the wound base.
- Mechanical Injuries: Abrasions, Bruises, Incised and Stab WoundsFull-thickness tear of skin and subcutaneous tissue produced by blunt force, with ragged, abraded edges and tissue bridges.
- Wound Terminology and Injury DocumentationA wound torn by blunt or shearing force, characterised by ragged, contused margins and tissue bridges crossing the wound depths. The distinction from an incise...