When labour needs help: induction, speeding things up and assisted birth

Some labours need a nudge to begin, a boost along the way, or a hand at the very end. None of this means your body has failed. Your team has tools to keep you and your baby safe, and you have the right to understand each one and to say yes or no.

Your right to informed consent

Every examination, procedure and medicine in labour needs your agreement. Informed consent means you are told what is proposed, why, what the benefits and risks are, what the alternatives are, and what would happen if you waited. You can ask questions, ask for time, and decline. In a true emergency, your team will explain as quickly as they can, and a short, clear "yes" is still yours to give.

A simple way to remember what to ask is BRAIN:

Benefits: What is this for? How will it help me or my baby?

Risks: What are the downsides, and how likely are they?

Alternatives: Are there other options?

Intuition: How do I feel about it? What is my gut telling me?

Nothing or now: What happens if we do nothing, or wait an hour or a day? Does it need to happen now?

Your support person can ask these for you when you are deep in labour, and unless something is urgent, you can ask for a few minutes alone to decide.

Induction of labour

Induction means starting labour artificially. In many places, between a quarter and a third of labours are induced.

Why it is offered

Induction is offered when the risks of continuing the pregnancy seem greater than the risks of birth now. Common reasons include:

Being past your due date, usually from 41 weeks, because the risk of stillbirth rises slowly after that.

Waters breaking at term without labour starting within about a day, because the risk of infection rises.

High blood pressure or pre-eclampsia.

Diabetes, in pregnancy or before it.

Concerns about your baby's growth, the amount of fluid around them, or reduced movements.

The reason shapes how urgent induction is and whether waiting with extra monitoring is reasonable.

How ready is your cervix?

Before induction, your midwife or doctor will usually examine your cervix to see how soft, thin, open and low it is, sometimes giving it a score (often called the Bishop score). A cervix that is already "ripe" may only need the waters broken and a drip. A firm, closed one needs softening first, and induction will take longer.

The methods, step by step

Induction often uses several methods in sequence.

• 1. Membrane sweep. Offered from about 39 to 41 weeks, often at a clinic visit. During an internal examination, your midwife or doctor sweeps a finger around the inside of the cervix to separate the membranes from it, releasing hormones called prostaglandins. It is uncomfortable for a minute or two and can cause spotting and cramps. It makes labour starting on its own within a week somewhat more likely and may be repeated.
• 2. Ripening with prostaglandins. Medicines similar to your own prostaglandins soften and open the cervix. They come as a gel or a slow-release pessary (a little like a tampon with a string) placed high in the vagina, or as tablets taken by mouth or placed vaginally. Your baby's heart rate is monitored before and after. You may need more than one dose over a day or so. Cramps and backache are common and can become labour. Rarely, the uterus contracts too often, which can stress your baby; a pessary can be pulled out, and medicines can slow contractions.
• 3. Balloon catheter. A thin tube is passed through the cervix, and a small balloon on its end is filled with sterile water. It presses gently on the cervix, which helps it open, usually over 12 to 24 hours, and it often falls out when the cervix is around 3 to 4 cm. It is less likely to overstimulate the uterus, and in some places you can go home with it in.
• 4. Breaking the waters (artificial rupture of membranes). Once the cervix is open a little, your midwife or doctor makes a small hole in the membranes with a thin plastic hook during an internal exam. You feel the exam and then a warm gush, but the membranes have no nerves.

Sometimes this alone starts labour. Contractions often become stronger quickly afterwards.

• 5. Oxytocin drip. A synthetic form of oxytocin is given through an IV line by a pump, starting low and increasing every so often until contractions are regular and strong, usually three to four every 10 minutes. Your baby's heart rate is monitored continuously. Contractions from a drip can build faster and feel more intense than those that start on their own, so think ahead about pain relief.

How long it takes

Induction is often slower than people expect, especially for a first baby with an unripe cervix. From the first pessary or balloon to the birth can take one to three days. Much of that time is waiting, and there may be delays if the labour ward is busy. Bring snacks, comfortable clothes and things to pass the time, and treat the early part as rest. Once you are in active labour, it is similar to any other labour.

Most inductions lead to a vaginal birth. If induction does not work after the methods have been tried, the options usually include a rest and another attempt, or a caesarean.

What to ask

Why are you recommending induction for me, and how strong is the reason?

What are the risks of waiting, and could I wait with extra monitoring? Which method will you start with, and can I go home during the first part?

Speeding up a slow labour

Sometimes labour slows or stalls. Before medicine, simple steps often help: moving, changing position, emptying your bladder, eating and drinking, resting, and having steady support. If progress is still slow, your team may suggest augmentation:

Breaking the waters, if they have not broken, which can strengthen contractions.

An oxytocin drip, started low and increased gradually, with continuous monitoring of your baby.

Augmentation can shorten labour, but contractions become more intense, and many people choose an epidural at this point. Ask whether there is time to try other things first.

Concerns about your baby's heart rate

Your baby's heart rate is checked throughout labour, either every so often with a handheld device or continuously with a monitor strapped to your belly (or, if the signal is poor, a small clip on your baby's scalp). Changes are common and often harmless. If the pattern is a concern, your team may first change your position, give fluids, stop or lower an oxytocin drip, or give oxygen.

If it is still unclear, some hospitals offer fetal blood sampling: during an internal exam, a tiny scratch is made on your baby's scalp to take a few drops of blood, which shows how well your baby is coping. The results guide whether labour can continue or your baby should be born soon, by assisted birth or by caesarean (see "Caesarean birth").

Assisted birth: vacuum and forceps

In the second stage, a vacuum (ventouse) or forceps can help your baby out. This is called an assisted, operative or instrumental vaginal birth. It happens in roughly one in eight births in some places, more often with a first baby or an epidural.

When it is offered

Pushing has gone on a long time and your baby is not coming down further.

You are exhausted.

Your baby's heart rate suggests they need to be born soon.

You have a medical condition that makes long pushing unwise.

Your baby must be low enough in the pelvis and your cervix fully open. If not, a caesarean is safer.

How it is done

Your team will explain what they recommend and ask for your consent. You need good pain relief: an epidural top-up, a spinal, or a pudendal block and local anesthetic (see "Pain relief with medicine"). Your bladder is emptied with a catheter, and your legs are usually supported in stirrups. If the birth is expected to be harder, it may happen in the operating room, so a caesarean can follow quickly if needed.

Vacuum (ventouse): a soft or firm cup is placed on your baby's head and held by suction. With each contraction, you push while the doctor or midwife pulls gently.

Forceps: two smooth, curved metal blades, like large spoons, are slipped one at a time around your baby's head and locked together. With your pushes, the doctor guides your baby out. Some forceps can also turn a baby who is facing the wrong way.

Usually the baby is born within a few contractions.

Effects on you and your baby

For you, both methods raise the chance of a tear, and forceps more so, including third- and fourth-degree tears (see "The third stage: the placenta and checking your body"). An episiotomy is often done, especially with forceps. Bruising, soreness and later pelvic floor symptoms are more likely, so pelvic floor exercises and follow-up matter.

For your baby, a vacuum usually leaves a raised, soft swelling on the head (a "chignon") that fades over a day or two, and sometimes a bruise or a collection of blood under the scalp that takes weeks to go. Forceps can leave red marks or small bruises on the face that fade within days. Babies born with help are a little more likely to have jaundice. Serious injury is rare. A vacuum is gentler on you but more likely not to work, in which case forceps or a caesarean may follow.

Episiotomy

An episiotomy is a cut in the perineum to make the opening wider. It is not done routinely, because a natural tear is often smaller and heals as well or better. It may be suggested for a forceps or vacuum birth, when your baby needs to be born quickly, or when a severe tear looks likely. After local anesthetic (or with an epidural), the cut is made at an angle away from the anus, which lowers the risk of damage to the sphincter. It is repaired with dissolving stitches after the placenta, and it heals like a second-degree tear: sore for a week or two, and mostly healed in about a month.

Shoulder dystocia

Rarely, after the head is born, a shoulder gets caught behind your pubic bone. This is called shoulder dystocia and happens in roughly 1 in 150 to 1 in 200 births. Teams practise for it regularly. If it happens, more staff will come in quickly. You will be asked to lie flat and pull your knees towards your chest (which widens the pelvis), someone will press firmly just above your pubic bone, and if needed the midwife or doctor will use specific hand movements or ask you to turn onto all fours. Most babies are born within a few minutes and are well. Some have a weak arm from stretched nerves, which usually recovers within weeks or months.

In short

You have the right to understand and agree to every intervention; BRAIN (benefits, risks, alternatives, intuition, nothing or now) helps you ask. Induction is offered when birth seems safer than waiting; it may involve a sweep, prostaglandins, a balloon, breaking the waters and an oxytocin drip, and can take one to three days.

Slow labours may be helped by movement and rest first, then breaking the waters or a drip.

Vacuum and forceps help a baby out in the second stage; marks on the baby fade within days, and tears are more likely for you.

Episiotomy is not routine and heals like a second-degree tear; shoulder dystocia is rare, practised for, and usually resolves within minutes.