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Another variety is the flat wart, which is smaller, smoother, and flatter than common warts. They often appear in large numbers on the face, neck, arms, or legs and are especially common in children and teenagers. Because they are less noticeable, flat warts are sometimes mistaken for minor skin blemishes until they begin spreading.
Filiform warts have a long, narrow appearance and usually develop around the eyes, nose, mouth, or neck. They often grow quickly and can become bothersome because of their location, even though they are usually painless. Due to their delicate position near sensitive areas of the face, they should not be removed at home.
Periungual warts grow around or beneath the fingernails and toenails. They may interfere with nail growth, cause discomfort, or increase the risk of infection if left untreated. People who bite their nails or frequently pick at the skin around their nails may be more likely to develop this type.
Finally, genital warts are caused by specific strains of HPV and spread through sexual contact. They appear on or around the genital or anal area and require evaluation by a healthcare professional. Although many HPV infections resolve naturally, some strains are associated with an increased risk of certain cancers, making proper diagnosis and follow-up especially important.