Perinatal Medicine Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
preeclampsia
Pregnancy complication characterized by high blood pressure and protein in urine, potentially progressing to seizures.
amniocentesis
Diagnostic procedure involving needle insertion through the maternal abdomen into the amniotic sac to obtain fetal cells...
amnioinfusion
Therapeutic instillation of fluid into the amniotic cavity to treat oligohydramnios or reduce cord compression.
anhydramnios
Complete absence of amniotic fluid, representing the most severe form of oligohydramnios.
Antepartum
The period of pregnancy before the onset of labor; prenatal period.
antepartum hemorrhage
Bleeding from the genital tract occurring after 20 weeks of pregnancy but before delivery of the baby.
APGAR score
Standardized assessment tool evaluating newborn health at one and five minutes after birth.
asynclitism
Lateral deflection of the fetal head during labor, where the sagittal suture deviates from the midline of the maternal p...
ballottement
Physical examination technique where gentle pressure causes the fetus to move away and then return, indicating adequate...
Banked cord blood
Umbilical cord blood that has been collected, processed, and cryopreserved for potential future stem cell transplantatio...
betamethasone
Corticosteroid medication administered to pregnant women to accelerate fetal lung maturation before preterm delivery.
biophysical profile
A fetal assessment tool that evaluates five parameters to determine fetal well-being. Often abbreviated as BPP in medica...
Bishop score
Standardized assessment tool for evaluating cervical readiness for labor induction.
Breech presentation
Fetal positioning where the buttocks or feet present first at delivery instead of the head.
caput succedaneum
Swelling of the fetal scalp that crosses suture lines, caused by pressure during vaginal delivery.
cephalohematoma
Collection of blood beneath the periosteum of the fetal skull that does not cross suture lines.
Cephalopelvic disproportion
Condition where the fetal head is too large or the maternal pelvis too small for vaginal delivery.
cerclage
Surgical procedure placing sutures around the cervix to prevent preterm birth due to cervical insufficiency.
chorioamnionitis
Infection of the fetal membranes and amniotic fluid, potentially causing maternal fever and fetal complications.
choriocarcinoma
Malignant tumor arising from trophoblastic tissue, most commonly following molar pregnancy, abortion, or normal pregnanc...
Chorion
The outer fetal membrane that forms the fetal portion of the placenta.
chorionic villus sampling
Prenatal diagnostic procedure obtaining placental tissue for genetic testing, typically performed between 10-13 weeks.
cordocentesis
A diagnostic procedure involving sampling of fetal blood directly from the umbilical cord. Also known as percutaneous um...
diastasis recti
Separation of the rectus abdominis muscles along the linea alba, commonly occurring during pregnancy and postpartum.
dichorionic diamniotic
Type of twin pregnancy where each fetus has its own chorion and amnion, indicating separate placentas and amniotic sacs.