Which of the following is a sign of an abnormal head examination?

Sinus tenderness is a sign of an abnormal head examination. It suggests the presence of inflammation or infection, such as sinusitis, which can cause pressure and pain in the sinus areas. During a head examination, healthcare providers assess for tenderness over the sinuses, looking for signs of underlying conditions that may require further investigation.

In contrast, a normal shape and size of the head, atraumatic findings, and a healthy scalp indicate normal findings in a head examination. These characteristics suggest that there is no obvious trauma, deformity, or dermatological issue affecting the scalp or the overall structure of the head, thus pointing to normal health in those areas.