Which of the following could be a sign of internal bleeding?

• A. Cold extremities
• B. Pale gums
• C. Lethargy
• D. Bruising

Answer: (B)

The concept here is that internal bleeding lowers the amount of blood circulating to the tissues, so the color of the mucous membranes becomes pale. Gums are a mucous membrane, and when there is significant blood loss inside the body, there’s less red blood cells and hemoglobin near the surface to give normal color. That pallor—pale gums—is a clear early sign that a cat or dog may be bleeding internally and potentially moving toward shock.

Other signs like cold extremities or lethargy can accompany internal bleeding because the body is trying to conserve blood flow, but they aren’t as specific to blood loss as pale gums. Bruising can occur with trauma and might accompany internal bleeding, but it isn’t as direct a measure of internal blood loss on its own.

If you see pale gums, treat it as a medical concern requiring urgent veterinary care, as prompt assessment and intervention are important.