Types of Lacerations

Laceration is a disruption of the continuity of tissue caused by a blunt force. The full thickness of the skin, subcutaneous tissues, muscle and/or the internal organs can get involve.

Split Lacerations

• This is caused by compression of the skin between the weapon and bone.
• For example a blow with a heavy blunt weapon on the head, face, elbow, shin or hip.

Torn Lacerations

• This is caused by a projecting surface of an object being dragged over the skin.
• For example Road traffic accidents or machinery accidents.

Stretch Lacerations

• This can be caused by a heavy blunt impact on an area causing the skin to over stretch
• For example Machinery accidents.

Perforated Lacerations

• This can be caused by objects capable of penetrating the skin
• For example a gun or an explosion

Blast Lacerations

• This can be caused by local blast effect of expanding gases
• For example Blast injuries

Cut Lacerations

• This can be caused by blunt sharp weapons
• For example a knife or blade

Crush Lacerations 

• This is a result of bone protruding out of the skin
• For example injury to the head or an arm/leg

Resources Used:

• http://webcache.googleusercontent.com/search?q=cache:http://www.pdn.ac.lk/med/departments/forensic/BUDHUSARANAI/forns-scn-cont.html&strip=1&vwsrc=0