Does having flat warts indicate infection with multiple types of HPV?

Having flat warts does not mean being infected with multiple types of HPV (human papillomavirus); rather, it is associated with infection by low-risk HPV types. HPV is a spherical DNA virus with more than 200 subtypes. Based on their pathogenicity or carcinogenic potential, HPV subtypes can be categorized as high-risk or low-risk. Low-risk HPV mainly causes benign skin lesions on the genital area and exposed skin regions, such as flat warts. Common subtypes associated with such conditions include HPV 1, 3, 4, 10, 12, and 15. Flat warts are a skin disease caused by infection with low-risk HPV. They typically present as flat, round or oval-shaped skin projections, varying in color, and commonly appear on exposed areas such as the face, neck, and arms. Treatment mainly focuses on destroying the wart tissue, regulating local skin growth, and stimulating immune responses; however, eliminating the infection completely is generally difficult, and recurrence is common. Therefore, having flat warts is not equivalent to being infected with multiple HPV types, but rather is associated with infection by specific low-risk HPV subtypes. If symptoms such as flat warts appear, timely medical consultation is recommended for accurate diagnosis and targeted treatment.