Venereal warts can appear as bumps on the genitals or rectum or they can be invisible.
Doctors first dip gauze pads in vinegar, wrap them around the suspected area, cover the gauze with saran wrap and after ten minutes, use a magnifying glass to look for white dots which can be the warts. The patient can treat the warts herself by applying podophyllin solution or Imiquimid cream. However, if the warts persist, the doctor can mark each wart with a special marking pencil and anesthetize each area. All white dots are not necessarily warts, so doctors often have to remove a piece of the wart and send it to a pathologist for analysis. There are more than 62 different types of venereal wart viruses, but only three or four types are very likely to cause the cancer.