Genital warts are skin growths on or around the genitals or anus. They are caused by a virus that's spread by sexual contact. Genital warts may continue to grow and spread, or they may go away with or without treatment. They often come back after treatment.
Genital warts may be large, or they may be too small to see. They may look like tiny bunches of cauliflower or flat, white areas that are hard to see. In women and men, warts may appear in the groin, on and around the genitals, in the urethra, or in the rectum or anus.