Which characteristic would be a normal finding in the examination of the arms?

A symmetrical appearance in the arms is a normal finding during examination because it indicates that both limbs are of similar size, shape, and contour, which is typical of a healthy individual. In a physical examination, symmetry is an important aspect as it suggests proper development and functioning of structures and blood flow.

In contrast, bumps or bruising might indicate injury or bleeding, which is not considered normal without a specific cause. Warmth to the touch can suggest inflammation or infection, which would also be abnormal unless there is a specific evidence of recent activity or injury. Excessive hair growth could be indicative of hormonal imbalances or other medical conditions, which would not be a normal finding in an average examination. Therefore, the symmetry of the arms is the expected and healthy characteristic when assessed.