Warts and verrucas

Warts are benign lesions that occur in the mucosa and skin , caused by infection of keratinocytes with human papilloma virus ( HPV )

group of nonenveloped DNA viruses of genus Papillomavirus diverse group of viruses which infect mainly the epithelial and mucosal tissues more than 200 distinct types based on similarities within their DNA sequences most can infect the cutaneous epithelium and cause skin warts specific types of infecting HPV are correlated with histological characteristics and to a lesser extent with morphological features of warts infection with HPV is the most common STI affecting about 80 % of the population two broad categories of HPV (1) low risk HPVs which cause anogenital and cutaneous warts (2) high risk HPVs causing oropharyngeal ( oral ,tonsil and throat areas ) and anogenital cancers oncogenic HPVs cause almost all of cervical cancers , 90 % of anal , 70 % of vaginal , 40 % of vulvular , 50 % of penile and 13 % to 72 % of oropharyngeal cancers

Spread- spread via direct skin to skin contact or via the environment direct skin or mucous membrane contact with friction indirect contact with contaminated surfaces as gymnasium floors or around swimming...