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Preterm labour is labour that starts too early, between 20 and 37 weeks of pregnancy. It can be caused by a problem involving the baby, the mother, or both. But sometimes the cause isn't known.
The earlier delivery happens, the greater the chances are that the baby will have serious problems.
Current as of: September 5, 2018
Author: Healthwise Staff
Medical Review:Sarah A. Marshall, MD - Family Medicine & Thomas M. Bailey, MD, CCFP - Family Medicine & Adam Husney, MD - Family Medicine & Kathleen Romito, MD - Family Medicine & William M. Gilbert, MD - Maternal and Fetal Medicine & Kirtly Jones, MD - Obstetrics and Gynecology, Reproductive Endocrinology
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