A–Z Glossary

Fetal station

Fetal station describes how high or low the presenting fetal part is relative to the maternal pelvis.

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Complete timeline of labor stages

Complete timeline of labor stages

The big picture: how labor is timed A complete labor timeline starts before anyone can know the exact hour of birth. Clinically, labor is not defined by contractions alone. It involves coordinated uterine contractions that produce progressive cervical effacement and dilation, usually with fetal descent. This is why a person may have hours of uncomfortable […]

Full breakdown and understanding labor progression

Full breakdown and understanding labor progression

What labor progression means clinically Labor progression refers to measurable and functional changes that move birth forward. Clinically, the main markers include uterine contraction pattern, cervical effacement and dilation, fetal descent, fetal rotation, maternal condition, fetal wellbeing, and ultimately vaginal birth or another indicated mode of birth. Although dilation is the number many people remember, […]

Second stage of labor explained

Second stage of labor explained

What the second stage means The second stage of labor is clinically defined as the interval from complete cervical dilation, usually 10 centimeters, until fetal birth. The first stage of labor is about cervical change; the second stage is about descent, rotation, and birth through the pelvis and vaginal canal. This definition matters because the […]

Why transition and second stage may take longer

Why transition and second stage may take longer

What transition and the second stage mean In labor, transition usually refers to the late part of the first stage, when the cervix is moving from about 8 cm to full dilation. The second stage of labor begins at full cervical dilation and continues until the baby is born. That handoff can feel abrupt: one […]

Why second labor is faster and what affects speed

Why second labor is faster and what affects speed

What people usually mean when they say the second labor is faster When people say a second labor is faster, they are usually talking about total labor time, not just the moment of delivery. In obstetric terms, the average labor duration tends to decrease with increasing parity, which means later births often take less time […]

Why assistance is more common in first birth

Why assistance is more common in first birth

First birth has a different labor pattern Parity, the number of previous births, strongly shapes the course of labor. In a first birth, the cervix, pelvic floor, and birth canal are doing this work for the first time. Cervical effacement and dilation may take longer, and descent of the fetal head through the pelvis can […]

Assisted delivery and baby positioning

Assisted delivery and baby positioning

How baby position affects second-stage labor In the second stage of labor, the baby must descend, flex the head, rotate, and pass under the pubic arch. Clinicians usually describe fetal head position by the direction the occiput, or back of the baby’s head, is facing. An occiput anterior position often fits the pelvic curve efficiently. […]

Pushing stage for first-time moms

Pushing stage for first-time moms

What the pushing stage is The pushing stage begins in the second stage of labor after full cervical dilation, when contractions continue and the baby moves lower through the pelvis. For a first-time mom, this can feel different from earlier labor because the work becomes more focused and often more physically demanding. Some people feel […]

Pushing stage for second birth

Pushing stage for second birth

Where the pushing stage fits in a second birth The pushing stage is the active part of the second stage of labor, which starts once the cervix is fully dilated. In many labors, it is preceded by a quieter period of passive descent during labor, when contractions continue and the baby moves lower before strong […]

Pushing with epidural explained

Pushing with epidural explained

What changes when pushing begins with an epidural The second stage of labor begins when the cervix is fully dilated and ends with the birth of the baby. With epidural analgesia, this stage may feel less instinctive because the medication reduces transmission of pain and pressure signals from the uterus, cervix, vagina, perineum, and pelvic […]

Why pushing may not be effective

Why pushing may not be effective

Why effort does not always equal progress People often interpret pushing as a straightforward muscular task: bear down harder and the baby will move. Birth does not work that way. The uterus is already doing the main propulsive work through contractions, while the birthing person coordinates abdominal pressure, pelvic floor relaxation, and timing. If any […]

Baby not descending and stalled pushing

Baby not descending and stalled pushing

What stalled pushing means The second stage of labor begins when the cervix is fully dilated and ends with birth. During this stage, the baby usually descends through the pelvis while also rotating and flexing the head. Descent is not always smooth or linear. Some labors have a long early second stage with passive descent, […]

Fatigue during pushing stage

Fatigue during pushing stage

Why fatigue happens in the second stage Fatigue during the pushing stage is not a sign of weakness. The second stage of labor is metabolically demanding: the uterus continues repeated high-intensity contractions, the pelvic floor stretches, the fetus rotates and descends, and the birthing person may be asked to coordinate abdominal pressure, breathing, positioning, and […]

How pushing problems are managed

How pushing problems are managed

What clinicians mean by pushing problems In birth, pushing problems usually refer to difficulty moving the baby down and out during the second stage of labor, after full cervical dilation. This does not mean the birthing person is doing anything wrong. Pushing depends on several coordinated factors: uterine contractions, maternal effort, pelvic anatomy, fetal position, […]

How baby moves during pushing

How baby moves during pushing

The second stage: more than pushing downward The second stage of labor begins when the cervix is fully dilated and ends with birth. This is the phase many people call the pushing stage, but the baby’s movement is more complex than a straight-line passage. The fetal head must fit through a curved, muscular, bony canal […]

Do you need to push and what it feels like

Do you need to push and what it feels like

When pushing usually begins The pushing stage of labor usually begins after full cervical dilation, commonly described as 10 centimeters. Full dilation means the cervix has opened enough that it is no longer the main barrier between the baby and the vaginal canal. Even then, the start of active pushing is not always automatic. Your […]

Labor stops or does not progress explained

Labor stops or does not progress explained

What it means when labor does not progress Labor progression includes more than the cervix opening. During the first stage, the cervix effaces, or thins, and dilates while the fetal head usually descends and rotates. During the second stage, the cervix is fully dilated and the fetus moves through the pelvis with pushing and continued […]