UNIVERSITY PARK, Pa., April 23 -- Pennsylvania State University issued the following news release:

HERSHEY, Pa. - Laura Laucks' daughter was around 14 years old when her periods started disrupting her life. Heavy bleeding, severe cramps and migraine headaches made her miss classes, Laucks said.

"She wasn't comfortable sitting in school," said Laucks, who lives in Lebanon. "She would have to go to the nurse a lot."

At a primary care physician's recommendation, Laucks brought her daughter to see Christina DeAngelis, an obstetrician-gynecologist at Penn State Health Obstetrics and Gynecology.

"We often receive referrals for young women who have really heavy menstrual flow, painful periods or premenstrual syndrome (PMS) symptoms so severe ...