What is the classic sign of appendicitis?

The classic sign of appendicitis is pain in the right lower quadrant. This specific area corresponds to the location of the appendix, which is typically inflamed in appendicitis. When the appendix becomes obstructed or infected, the body exhibits localized pain that often starts near the center of the abdomen (the periumbilical area) before migrating to the right lower quadrant. This pattern of pain is a key feature that healthcare providers look for in diagnosing appendicitis.

Recognizing this pain is critical since it can help distinguish appendicitis from other abdominal conditions that may cause similar symptoms, such as gastrointestinal issues or other types of abdominal pain. The right lower quadrant pain is often associated with additional symptoms like tenderness upon palpation, rebound tenderness, and rigidity, which further support the diagnosis.

Other symptoms often accompany appendicitis, such as nausea, vomiting, or fever, but the localized pain in the right lower quadrant remains the hallmark sign that prompts further evaluation and often leads to surgical intervention if appendicitis is confirmed.