Introduction — This topic includes links to society and government-sponsored guidelines from selected countries and regions around the world. We will update these links periodically; newer versions of some guidelines may be available on each society's website. Some societies may require users to log in to access their guidelines.
The recommendations in the following guidelines may vary from those that appear in UpToDate topic reviews. Readers who are looking for UpToDate topic reviews should use the UpToDate search box to find the relevant content.
International
Canada
●SOGC: Guidelines on prenatal screening for and diagnosis of aneuploidy in twin pregnancies (2017)
●SOGC: Guidelines on ultrasound in twin pregnancies (2017)
United States
●ACOG: Committee opinion on multifetal pregnancy reduction (2017, reaffirmed 2020)
●American College of Radiology (ACR): ACR Appropriateness Criteria on multiple gestations (2017)
United Kingdom
●National Institute for Health and Care Excellence (NICE): Guideline on twin and triplet pregnancy (2019, updated 2024)
●NICE: Quality standard on multiple pregnancy – Twin and triplet pregnancies (2013, updated 2019)
●RCOG: Green-top guideline for the management of monochorionic twin pregnancy (2016)
Australia–New Zealand
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