Bloody show is blood-tinged mucus that may come from the vagina as labor begins. When the cervix thins (effaces) and opens (dilates) during early labor, the mucus plug that has been in the cervix will loosen and pass out of the vagina, along with a small amount of blood.
Last Revised: November 2, 2011
Author: Healthwise Staff
Medical Review: Sarah Marshall, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology
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