What could be a sign of a scalp infection?

A sign of a scalp infection can indeed include the presence of pus formation or inflamed follicles. This is often indicative of a bacterial infection or another type of inflammatory condition affecting the scalp. When follicles become inflamed due to infection, they can produce pus as the body responds to the pathogens. The presence of pus suggests that the body is actively fighting an infection, which may also be accompanied by other symptoms such as warmth, redness, and tenderness in the affected area.

In contrast, conditions like a dry scalp with no irritation typically do not indicate an infection; instead, they might suggest simple dryness or sensitivity. Consistent itching without redness could point towards allergies, irritants, or other scalp conditions, but not necessarily an infection. Similarly, excessive oiliness without bumps may reflect an overproduction of sebum but does not signify an infection, as it lacks the hallmark signs of inflammation and pus.