Feature that differentiates true from aificial bruise
contusion: not well defined, diffuse, and irregular margins Aificial bruise: well defined with regular margins. Ref: FORENSIC MEDICINE AND TOXICOLOGY DR PC IGNATIUS THIRD EDITION PAGE 120
Mechanical injuries
Round shape, irregular margins
Irregular shape with regular margins
Swelling of surrounding area
Erythema of surrounding areas
Irregular shape with regular margins