Though usually harmless, some types of HPV cause cervical lesions that, over a period of time, can develop into cancer if untreated.| American Sexual Health Association
Sexually transmitted infections, or STIs—also called sexually transmitted diseases, or STDs—affect people of all ages, backgrounds, and from all walks of life. In the U.S. alone there are about 20 million new cases of STIs each year.| American Sexual Health Association