1. Rebound tenderness is noted on physical examination.

2. However, the pain persisted with direct and rebound tenderness over the whole abdomen on the 4th day after ablation.

3. Abdomen was soft, no tenderness and rebound tenderness; Liver and spleen were impalpable.

4. The abdomen flat with marked tenderness over the right upper quadrant, where muscular spasm and rebound tenderness were present.

5. Epileptic nature of the performance of a variety of pain, such as the oppression of pain, rebound tenderness, needle-like pain and electric shock-like pain.