CHICAGO (AP) — The American Academy of Pediatrics says using condoms alone is among the least effective methods at preventing pregnancy in sexually active teen girls.

The group’s updated policy now recommends that teen girls who have sex should also use IUDs or hormonal implants — long-acting birth control methods that are effective, safe and easy to use, without having to remember to use them.

The group adds that condoms also should be used every time teens have sex, to provide protection against sexually transmitted diseases and to boost chances of preventing pregnancy.

Lead author Dr. Mary Ott of Indiana University, says IUDs and hormonal implants cost more, usually hundreds of dollars, because inserting them involves a medical procedure. But they’re less expensive in the long run than over-the-counter condoms or prescription birth control pills.

The new guidance is published in Monday’s Pediatrics.

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