What symptom is commonly associated with pruritus?

Pruritus is defined as the sensation of itching, which is the most prominent symptom associated with this condition. It can arise from a variety of causes, including skin conditions, allergies, and internal diseases. The sensation of itching can lead to scratching, which may exacerbate skin irritation or lead to secondary infections.

The other symptoms mentioned, such as musty smell, pain, and redness, are not inherently associated with pruritus. While redness can sometimes occur due to scratching or underlying irritation, it is not a defining characteristic of pruritus itself. Pain might accompany certain skin conditions that also cause itching, but it is not synonymous with the sensation of pruritus. Thus, the correct answer accurately reflects the primary symptom of pruritus as the experience of itching.