Pregnancy & Childbirth Childbirth: What is effacement? By Isabel Kallman Featured Parenting Professional: Erica Lyon of The Big Book of Birth. TwitterFacebookPin ItEmail Article Related posts: Childbirth: What does it mean for the baby “to drop”? Childbirth: Contractions and how do I know I’m in Labor? Childbirth: what is bloody show and the mucous plug? Childbirth: Simple Strategies for Coping with the Early Stage of Labor Coping with Early Labor: day labor vs. night labor.