What does the current evidence tell clinicians about the use of progestogens for prevention of preterm birth (PTB)? How should women with a previous spontaneous PTB be evaluated for risk of subsequent PTB? And what interventions have been shown to be beneficial for reducing the risk of PTB in women who do not have a history of PTB but who are found to have a short cervical length? Host Dr. Lee Shulman welcomes Dr. Baha Sibai to answer these questions and more. Dr. Sibai is Professor of the Department of Obstetrics, Gynecology and Reproductive Sciences at The University of Texas Health Sciences Center in Houston, Texas.