Which clinical sign could indicate internal bleeding in a trauma patient?

Ecchymosis around the umbilicus, also known as Cullen's sign, is a clinical indicator that may suggest internal bleeding, particularly in cases of abdominal trauma. This sign occurs due to the accumulation of blood in the peritoneal cavity, which can manifest as a bluish discoloration around the navel. It often arises from bleeding within the abdomen and is a notable finding that can raise suspicion for conditions such as hemorrhagic pancreatitis or liver trauma.

Recognizing this sign is crucial in trauma assessment, as it can prompt further diagnostic imaging or intervention to manage potential bleeding. Understanding the clinical significance of such signs plays a critical role in ensuring timely and effective management of trauma patients.