Birth control can help prevent knee injuries, according to study

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11 Birth Control Facts That Will Surprise You

Many people take birth control to regulate their menstrual cycle and/or prevent pregnancy. But a new study shows the little miracle pill may do people who take it another solid: prevent serious knee injuries.

The study: Researchers at the University of Texas Medical Branch at Galveston analyzed a decade of prescription and insurance information of 23,428 women ages 15-19 to find out if there was a correlation between needing reconstructive surgery on their ACL and taking birth control.

Read more: Women Are Buying Plan B for Other Women to Fight Pharmacy Slut-Shaming

Birth Control Can Help Prevent Knee Injuries, According to Study
Source: Getty

The people who had undergone ACL surgery were 18% less likely to be on birth control, which suggests oral contraceptives could have a positive influence on preventing knee injury for that age group.

"The use of oral contraceptives potentially modifies anterior cruciate ligament injury risk in young women," the study concluded. "These data suggest that women ages 15–19 years undergoing ACL reconstruction used oral contraceptives at a lower rate than the general population."

How birth control does it: People with uteruses are 1.5 to two times more likely than those without to tear their ACL. A previous study found that people with uteruses are most likely to tear their ACL during the last few days of their period, when estrogen levels are at their highest.

That data speaks to why birth control can help prevent ACL injury. "Birth control pills help maintain lower and more consistent levels of estrogen, which may prevent periodic ACL weakness," Gray wrote. "With this in mind, we examined whether oral contraceptive use protected against ACL injuries that require surgery."

Learn more about the history of birth control:


16 PHOTOS
The evolution of birth control
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Birth control can help prevent knee injuries, according to study
Closeup still life of Zorane tablets, a series of low-estrogen birth control pills. Shown are three packs, one open, two closed. (Photo by Hulton Archive/Getty Images)
Various big posters were hoisted in Saint Peter's Square by a group of persons favoring artificial birth control, as Pope Paul VI appeared in the central balcony of Saint Peter's Basilica to read his Easter message to the world and impart his blessing "Urbi et Orbi" (Over the City of Rome and the World) March 26, 1967. The huge poster in center reads: "Yes to the pill", while others read: "No to Abortion." (AP-PHOTO)
13th August 1968: Father Paul Weir expounds on his refusal to quit the Catholic church in the St Cecilia Presbytery in North Cheam. Father Paul, 31, was suspended from his duties because he disagrees with the Pope's ruling on birth control. (Photo by Keystone/Getty Images)
Birth control advocate Bill Baird, center, and Carol Morreale, left, as they led a demonstration outside the Immaculate Conception Church, Aug. 18, 1974 in Marlboro, Mass., protesting the denial of the baptismal sacrament to 3-month-old Nathaniel Morreale. Carol Morreale, the child's mother has publicly advocated that women be given the right to choose whether they will have an abortion. (AP Photo)
A woman holds a birth control pill dispenser indicating the day of the week in New York in August 1974. Though medical trials for the oral contraceptive started in the late 1950s, Enovid was approved by the Food and Drug Administration in 1960. The sexual revolution was born. Known as "The Pill," it changed the balance of hormones estrogen and progesterone in women to prevent pregnancy. It was invented by Dr. Gregory Pincus and Dr. John Rock with the support of Planned Parenthood founder Margaret Sanger. (AP Photo/Jerry Mosey)
FILE - This May 28, 1999, file photo shows a new birth control pill container designed to look like a woman's makeup compact for Ortho-McNeil Pharmaceutical Inc., of Raritan, N.J., displayed at the manufacturer's assembly line. More than half of privately insured women are getting free birth control due to President Barack Obamaâs health care law, part of a big shift thatâs likely to continue despite the Supreme Court allowing some employers with religious objections to opt out. (AP Photo/Mike Derer, File)
Graphic shows the Implanon implant, with contraceptive use stats among women ages 15-44. (AP Graphic)
Graphic shows preferred method of birth control for women by age; 1c x 3 1/2 inches; 46.5 mm x 88.9 mm
Chart shows failure rate of popular female contraceptives
Graphic shows the annual cost of the most effect birth control methods
Individually packaged hand-knitted uteri are placed on a countertop at the lobby of the State Capitol in Phoenix, Thursday, April 5, 2012. Critics of an Arizona proposal to limit birth control gave more than a dozen state lawmakers the personalized gift. The packages were delivered each in a clear plastic bag, labeled with a lawmakerâs name and containing a letter from a Tempe woman asking legislators to oppose the measure. (AP Photo/Terry Tang)
FILE - In this May 2, 2013 photo, pharmacist Simon Gorelikov holds a generic emergency contraceptive, also called the morning-after pill, at the Health First Pharmacy in Boston. The plaintiffs in a legal battle over emergency contraceptives say in a letter Wednesday June 12, 2013, the government has failed to comply with a New York judge's order to lift all restrictions on sales of the drug. (AP Photo/Elise Amendola, File)
A group of people organized by the NYC Light Brigade and the women's rights group UltraViolet, use letters in lights to spell out their opinion, in front of the Supreme Court, Monday, March 24, 2014, in Washington. Holding the "H" in "Hands" is Rep. Keith Ellison, D-Minn. The Supreme Court is weighing whether corporations have religious rights that exempt them from part of the new health care law that requires coverage of birth control for employees at no extra charge. (AP Photo/Alex Brandon)
Margot Riphagen of New Orleans, La., wears a birth control pills costume as she protests in front of the Supreme Court in Washington, Tuesday, March 25, 2014, as the court heard oral arguments in the challenges of President Barack Obama's health care law requirement that businesses provide their female employees with health insurance that includes access to contraceptives. Supreme Court justices are weighing whether corporations have religious rights that exempt them from part of the new health care law that requires coverage of birth control for employees at no extra charge. (AP Photo/Charles Dharapak)
(Photo via Getty)
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