Human papillomavirus (HPV) type 7 (HPV7) is known as the causative virus of 'butcher's warts'. In 2010, Sun et al. proposed that 'warts in toe webs' (WTW), which are extremely rare warts localized in the interdigital areas, can be another characteristic clinical form of HPV7 infection.(1) In general, HPVs have a tropism for squamous epithelial cells, and specific HPV genotypes tend to be closely ... [Show full abstract] associated with distinct morphologies and anatomical sites or tissues. For example, HPV1 is associated with palmar and plantar myrmecia, whereas HPV6 and HPV11 are associated with condyloma acuminatum on the anogenital areas, and HPV16 and HPV18 with anogenital warts or cervical This article is protected by copyright. All rights reserved.