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About the Journal

Obstetrics & Gynecology is the official publication of the American College of Obstetricians and Gynecologists (ACOG). Popularly known as "The Green Journal," Obstetrics & Gynecology has been published since 1953. Then as is now, the goal of the journal is to promote excellence in the clinical practice of obstetrics and gynecology and closely related fields. To do so, the journal publishes articles on a variety of translational and clinical topics.

Obstetrics & Gynecology reaches over 45,000 members and non-member subscribers.

Impact Factor
Obstetrics & Gynecology's 2019 impact factor is 5.524. The journal's ranking is the sixth highest impact factor out of all 82 obstetrics and gynecology journals.


Most content in Obstetrics & Gynecology will be published online 2 weeks ahead of the print mail date. Items that are generally not published ahead-of-print include corrections/errata, letters to the editor, and official ACOG documents (eg, Practice Bulletins).

All material published ahead-of-print is embargoed until 5:00 PM ET on the date listed below:

January 2021 issue: December 3, 2020
February 2021 issue: January 7, 2021
March 2021 issue: February 4, 2021
April 2021 issue: March 11, 2021
May 2021 issue: April 8, 2021
June 2021 issue: May 6, 2021
July 2021 issue: June 10, 2021
August 2021 issue: July 8, 2021
September 2021 issue: August 5, 2021
October 2021 issue: September 9, 2021
November 2021 issue: October 7, 2021
December 2021 issue: November 4, 2021

In general, corrections/errata, letters to the editor, and official ACOG documents are embargoed until 5:00 PM ET on the date listed below:

January 2021 issue: December 17, 2020
February 2021 issue: January 21, 2021
March 2021 issue: February 18, 2021
April 2021 issue: March 25, 2021
May 2021 issue: April 22, 2021
June 2021 issue: May 20, 2021
July 2021 issue: June 24, 2021
August 2021 issue: July 22, 2021
September 2021 issue: August 19, 2021
October 2021 issue: September 23, 2021
November 2021 issue: October 21, 2021
December 2021 issue: November 18, 2021

The embargo is rigidly enforced. ACOG staff may not release or discuss with outside parties any upcoming studies or ACOG documents prior to the embargo. This includes verification that said documents indeed are being released. This policy applies to members of the media, study authors, public information officers at universities and other institutions, and all others with access to articles published in Obstetrics & Gynecology.

Representatives of the press may request further information about Obstetrics & Gynecology articles by contacting ACOG's Communications Department at [email protected].

About the Publisher
Obstetrics & Gynecology is published for the American College of Obstetricians and Gynecologists by Wolters Kluwer Health, an international provider of quality information in all media for physicians and other health care professionals in training and in practice. For information about their products, visit the Wolters Kluwer Online Store at

Obstetrics & Gynecology participates in the Health InterNetwork Access to Research Initiative (HINARI). Academic, research, and government institutions in qualifying countries may obtain information at