This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mechanical Injuries, Subject name: Forensic Medicine
In a larger bruise, the colour changes begins at: 
Select and explain. 
A. The periphery, B. From the centre, C. There is no rule, D. No colour change
A: The periphery
Answer: A: The periphery 
Explanation: In a larger bruise, the colour change stas from periphery (healing of contusion) The contusion regains its normal colour in 1-2 weeks.