A localised, rounded swelling of mucous membrane around the opening of the bowel, and the genital organs, sometimes known as ‘genital warts’ or ‘ano-genital warts’. There are two main forms: condyloma latum, which is syphilitic in origin, and condyloma acuminatum, which often occurs in association with sexually transmitted disease, but is only indirectly due to it, being primarily a virus infection.