Glossary: Terms Starting with "C"

Fluid from the cervix that changes during the menstrual cycle.

Related: Fertile window, ovulation

Very early pregnancy loss soon after a positive test.

Related: hCG, early pregnancy loss

Ultrasound measurement from top of embryo/fetus to rump.

Related: Dating ultrasound, GA

Screening using placental DNA fragments in maternal blood.

Related: NIPT, NIPS

Diagnostic test sampling placental tissue.

Related: Amniocentesis, diagnostic test

Difficulty passing stool, common due to hormones, supplements, or pressure.

Related: Hemorrhoids, iron

Lower part of the uterus that opens during labor.

Related: Dilation, effacement

Ultrasound measurement of cervix length, sometimes used for preterm birth risk assessment.

Related: Short cervix, cerclage

Procedure using a stitch to help keep the cervix closed in selected high-risk situations.

Related: Short cervix, cervical insufficiency

Tightening of the uterus during labor or practice contractions.

Related: Braxton Hicks, dilation

When the top of the baby’s head becomes visible during vaginal birth.

Related: Pushing, second stage

Electronic monitoring recording fetal heart rate and contractions.

Related: Fetal monitoring, contractions

Methods used to soften, thin, or open the cervix before induction.

Related: Induction, Foley balloon

Surgical birth through incisions in the abdomen and uterus.

Related: VBAC, TOLAC

Blood remaining in the umbilical cord and placenta after birth.

Related: Umbilical cord, DCC

Baby positioned head first.

Related: Breech, presentation

Early milk produced before mature milk comes in.

Related: Milk coming in, latch

Periods when a newborn feeds very frequently over several hours.

Related: Growth spurt, milk supply

Using both breast milk and formula.

Related: Formula feeding, pumping