The differences between acute appendicitis and chronic appendicitis are mainly manifested in:

First, the onset of the condition. Acute appendicitis develops suddenly, characterized by sudden abdominal pain, nausea, and vomiting, while chronic appendicitis usually stems from prolonged acute appendicitis, with symptoms that are not as abrupt.

Second, the clinical signs. Acute appendicitis can involve the peritoneum and is characterized by significant abdominal tenderness and rebound pain, whereas chronic appendicitis generally does not exhibit rebound pain.

Third, during an acute appendicitis attack, there is a clear increase in blood markers, whereas chronic appendicitis typically shows normal blood markers.