What is a common symptom of a scalp infection?

Redness and itching are common symptoms of a scalp infection because they indicate inflammation and irritation of the skin. An infection can cause the body to respond by sending blood to the affected area, leading to redness, which is a hallmark sign of inflammation. Itching often accompanies infections as the body's immune response may trigger histamine release, resulting in the sensation of itchiness. These symptoms suggest that an infectious agent, such as bacteria or fungi, is present, which can disrupt the normal balance of the scalp's environment.

In contrast, dryness and flaking typically suggest issues like dandruff or dry scalp rather than an infection. Excessive oiliness is often related to overactive sebaceous glands and does not directly point to infection. Split ends are associated with hair damage and do not reflect scalp conditions. Understanding these symptoms helps in identifying scalp issues accurately and determining the appropriate treatment or intervention.