Screening young women before the age of 21 doesn't reduce cervical cancer rates, according to an opinion from the American College of Obstetricians and Gynecologists' Committee on Adolescent Health Care. Because of this, the committee recommended for the first time that cervical cancer screening start at age 21, except in situations that warrant earlier testing. "The vast majority of adolescent girls should wait until they turn 21 before they have their first Pap test," Dr. Cheryl B. Iglesia, chair...