This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
Blumberg's sign is 
Select and explain. 
A. Rebound tenderness during abdominal palpation, B. Board-like rigidity of abdomen, C. Pressure over left iliac fossa causing pain in right iliac fossa, D. Pressure over right iliac fossa causing pain in left iliac fossa
A: Rebound tenderness during abdominal palpation
Answer: A: Rebound tenderness during abdominal palpation 
Explanation: Positive Blumberg's sign or rebound tenderness or Release sign is indicative of peritonitis which can occur in diseases like appendicitis, perforated peptic ulcer and may occur in ulcerative colitis with rebound tenderness in the right lower quadrant etc. Rebound tenderness on abdominal palpation is d/t the fact that the parietal peritoneum which has already been inflamed due to the presence of underlying inflamed organ also springs back along with the abdominal muscles. < p> Reference : page 458 A manual on clinical surgery Das 10th edition