What is a predominant symptom of tinea capitis?

Tinea capitis, commonly known as scalp ringworm, primarily affects the scalp and is characterized by round patches of hair loss, or alopecia. This symptom arises because the fungal infection targets hair follicles, leading to the hair becoming brittle and breaking off, resulting in distinctive bald spots. These patches can be distinctively circular, making them a key clinical sign of the condition.

The other symptoms associated with tinea capitis can vary, but round patches of alopecia are the most prominent and defining feature. While lesions might occur in other dermatophyte infections affecting the body and scaliness might be seen in various conditions, the direct link between tinea capitis and the presentation of alopecic patches specifically targets this fungal infection's hallmark. Therefore, the presence of round patches of alopecia is the most indicative symptom of tinea capitis.