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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 2020 impact factor is 7.611. The journal's ranking is the third highest impact factor out of all 83 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:

December 2021 issue: November 4, 2021
January 2022 
issue: December 2, 2021
February 2022 issue: January 6, 2022
March 2022 issue: February 3, 2022
April 2022 issue: March 10, 2022
May 2022 issue: April 7, 2022
June 2022 issue: May 5, 2022
July 2022 issue: June 9, 2022
August 2022 issue: July 7, 2022
September 2022 issue: August 4, 2022
October 2022 issue: September 8, 2022
November 2022 issue: October 6, 2022
December 2022 issue: November 3, 2022

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

December 2021 issue: November 18, 2021
January 2022 issue: December 16, 2021
February 2022 issue: January 20, 2022
March 2022 issue: February 17, 2022
April 2022 issue: March 24, 2022
May 2022 issue: April 21, 2022
June 2022 issue: May 19, 2022
July 2022 issue: June 23, 2022
August 2022 issue: July 21, 2022
September 2022 issue: August 18, 2022
October 2022 issue: September 22, 2022
November 2022 issue: October 20, 2022
December 2022 issue: November 17, 2022

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