What is a characteristic of the obturator sign?

The obturator sign is specifically used to assess for appendicitis. This sign is observed when a healthcare provider flexes the patient's right hip and knee to 90 degrees and then internally rotates the hip. If this maneuver elicits pain in the right lower quadrant, it suggests irritation of the obturator internus muscle, which can be due to an inflamed appendix that is in close proximity.

In the context of appendicitis, identifying the obturator sign can help in the clinical assessment and differential diagnosis, making it a valuable physical examination tool for practitioners. This characteristic and function of the obturator sign highlight its role in evaluating suspected appendiceal issues.