Induction of Labour: Why It Is Advised, How It Is Done and What to Expect
Induction can take one to three days from the first dose to delivery, especially in a first pregnancy.
"We should plan an induction." Few sentences in the last weeks of pregnancy change the mood of a household so quickly. Some women feel relieved that the wait is nearly over. Others feel anxious, because they had pictured labour starting on its own, with a dramatic dash to the hospital.
I understand both reactions. In my practice at Prakash Hospital, I see many women in the ninth month who have questions about induction, and what they have heard from friends and relatives is often a mix of fact, fear and family folklore. "Induced labour is more painful." "Induction always ends in a C-section." "It means your body failed." None of those statements is simply true.
This guide explains what induction of labour is, why doctors advise it, the methods used, how long it can take, the risks and benefits and how to prepare. If you are looking for a gynaecologist in Noida for delivery, details are at the end.
What is induction of labour?
Induction means starting labour artificially, using medicines or procedures, instead of waiting for contractions to begin by themselves. The aim is the same as for any labour: regular contractions that open the cervix and allow the baby to be born, preferably vaginally.
About 1 in 4 or 5 pregnancies in many countries now involve an induction, and the proportion keeps rising as research shapes recommendations.
Why might you need induction?
Doctors advise induction when the risks of continuing the pregnancy are greater than the risks of delivering. Common reasons include:
- Post-term pregnancy. Pregnancy that has reached 41 weeks (many guidelines offer induction between 41 and 42 weeks). Beyond 42 weeks the placenta ages and the chance of stillbirth rises.
- Waters have broken but labour has not started (premature rupture of membranes) at term, because the risk of infection grows with time.
- High blood pressure or preeclampsia.
- Gestational diabetes or diabetes, especially if sugar levels are hard to control or the baby is large.
- Reduced amniotic fluid (oligohydramnios).
- Fetal growth restriction, when the baby is not growing well.
- Reduced fetal movements with concerning scan or monitoring findings.
- Cholestasis of pregnancy (intense itching with raised bile acids).
- Twin pregnancy that has reached its recommended timing.
- Previous stillbirth or other high-risk history.
- Maternal health conditions such as kidney disease or lupus.
- Large baby in certain circumstances, though this is debated.
What about induction at 39 weeks?
A large trial called ARRIVE, published in 2018, looked at healthy first-time mothers with a low-risk pregnancy who were offered induction at 39 weeks. It found that the induction group had a lower rate of caesarean delivery and fewer cases of high blood pressure than those who waited for spontaneous labour. Not every expert applies this to every population, and the decision depends on your circumstances. If your doctor discusses a 39-week induction, it should be an informed choice, not a rule, and you can ask about the benefits and drawbacks for you.
When induction is not advised
Induction may be unsafe or not recommended if you have:
- A placenta previa (placenta covering the cervix)
- A baby lying across the womb (transverse) or in an unsuitable position
- A previous classical caesarean or certain other uterine scars
- Active genital herpes
- Umbilical cord prolapse or a cord presenting ahead of the baby
- Some forms of fetal distress that need immediate delivery
Before the induction: the cervix check
Success depends heavily on how ready the cervix is. Your doctor will do a vaginal examination and assign a Bishop score, a number that combines how dilated, soft, thin and low the cervix is and the position of the baby's head. A high score means the cervix is ripe and induction is likely to work quickly. A low score means the cervix is "unfavourable" and needs ripening first.
A CTG (cardiotocography) trace, which records the baby's heart rate, and sometimes an ultrasound for fluid and growth, are done before starting.
Methods of induction
Different steps may be used one after another, and your doctor will choose them depending on how ripe your cervix is, whether your membranes have ruptured and your medical history.
1. Membrane sweep
During a vaginal examination, the doctor inserts a finger through the cervix and gently separates the membranes from the lower part of the uterus. This releases natural prostaglandins and can start labour within a few days. It may cause cramps, spotting or discomfort. It is not a full induction and carries a low risk. It is usually offered from 39 to 41 weeks.
2. Cervical ripening with prostaglandins
If the cervix is firm and closed, a medicine containing prostaglandin is placed in the vagina to soften it. Options include dinoprostone (as a gel, tablet or slow-release insert) and misoprostol. These are given under supervision, with monitoring of the baby's heartbeat and your contractions. Sometimes this step alone starts labour. Occasionally contractions come too frequently (uterine hyperstimulation), and the medicine can be removed or treated.
3. Balloon catheter (Foley)
A thin tube with a small balloon at the tip is inserted through the cervix and filled with fluid. The pressure helps the cervix open mechanically. It's useful for women who have had a caesarean before or who should avoid prostaglandins, and it carries a lower chance of over-strong contractions.
4. Breaking the waters (amniotomy)
Once the cervix is partly open and the baby's head is low, the doctor can make a small break in the bag of waters using a thin hook. It is painless for the baby and may feel like a rush of warm fluid. It can start or speed up labour.
5. Oxytocin drip
Oxytocin is the hormone that causes contractions. A synthetic form is given through a vein in carefully controlled doses and increased gradually. The baby's heart rate and your contractions are monitored continuously. This is the most common way to strengthen labour once the cervix is ready.
Natural methods such as castor oil, spicy food, long walks, herbal remedies or nipple stimulation are often suggested. Evidence is weak, and some, such as castor oil, can cause diarrhoea and dehydration. Please do not try them without speaking to your doctor.
How long does induction take?
This surprises many women. Induction is rarely a quick process. If your cervix is unfavourable, ripening can take 12 to 24 hours or longer, and the whole process, from the first dose to delivery, can take one to three days, especially for first-time mothers. It does not mean something has gone wrong. The latent phase (early labour) can take a long time even in spontaneous labour.
Some women are admitted, receive medicine, go home to wait and return when contractions begin. Others stay in hospital for the whole process, depending on risk and local protocol.
What does it feel like?
Contractions after induction, particularly with oxytocin, can build faster and feel stronger than the gradual build-up of spontaneous labour. Some women find them more intense, though this varies, and many women have an induced labour that feels no different from a natural one. You can still use breathing, position changes, a birth ball, a warm shower, massage and a support person. If you want an epidural or other pain relief, ask early and discuss what is offered at your hospital before your admission.
Continuous fetal monitoring can limit movement, but it is possible to stay upright, sit on a ball or stand next to the bed with a wireless or long-lead monitor.
Risks and drawbacks
Induction is generally safe when advised for a good reason, and it saves lives in many situations. Still, it helps to know the possible downsides.
- Failed induction. Labour doesn't establish, and a caesarean might be needed. This is more likely if the cervix is very unripe, especially in a first pregnancy.
- Uterine hyperstimulation. Contractions that are too frequent or strong, which can reduce the baby's oxygen supply temporarily. It's treated by stopping or adjusting the medicine.
- Longer labour and more time in hospital.
- Caesarean delivery. The overall caesarean rate in induced labour depends on the reason for induction and the ripeness of the cervix. After a good indication, the benefit often outweighs the risk.
- Infection, especially if the membranes are ruptured for a long time.
- Postpartum haemorrhage. The uterus may be slower to contract after prolonged oxytocin.
- Cord prolapse when the waters are broken with a high baby's head. Rare.
- Uterine rupture. Very rare, but the risk rises if there is a previous caesarean scar and prostaglandins or high-dose oxytocin are used.
- Baby's jaundice or breathing issues are slightly more common after oxytocin-augmented labour in some studies.
Waiting also has risks, including stillbirth and complications from conditions like preeclampsia, which is why your doctor's recommendation is based on balancing both.
Induction after a previous caesarean
Many women who have had a caesarean wish to try a vaginal birth (VBAC). Induction is possible but carries a higher risk of uterine scar rupture than spontaneous labour, particularly with prostaglandins. A Foley balloon is often preferred. This needs a detailed discussion and a hospital with emergency facilities.
How to prepare for an induction
- Ask questions. Why is it advised now? What are the alternatives? What happens if I wait? What method will be used first? What if it doesn't work?
- Pack your hospital bag early. A long stay is possible. Include snacks, a phone charger and comfortable clothes.
- Eat and rest. A good meal before admission and a good night's sleep help. Labour needs energy.
- Arrange support. A partner, family member or doula who can stay with you.
- Plan childcare and work for the days around the induction.
- Discuss your birth preferences with the team. They won't always be possible, but they can often be respected.
- Keep your expectations flexible. An induced labour can end in a normal birth, an assisted birth or a caesarean, and any of them is a successful way to meet your baby safely.
Signs to report during the wait
If you are waiting at home before or between induction steps, contact the hospital if you notice:
- Fluid leaking
- Bleeding
- Reduced baby movement
- Very painful or constant contractions
- Fever
- Severe headache or visual changes
Common questions
Will I definitely need an induction if I pass my due date? Not always. A due date is an estimate. Many women deliver spontaneously between 40 and 41 weeks. Monitoring is often arranged if you go beyond your date.
Does an induced labour mean a caesarean? No. Most women who are induced deliver vaginally, particularly if the cervix is favourable.
Can I go home after the first dose? Sometimes, depending on the method and your hospital's policy.
Can I eat during induction? Light food and fluids are usually allowed in early labour unless your doctor advises otherwise.
Is a membrane sweep safe? Yes, generally, though it can be uncomfortable.
Is induction more painful? It may feel more intense for some women. Pain relief options are available.
Plan your delivery with a team you trust
If you have been told that induction may be needed, or you want to understand your options before your due date, the best time to talk is a few weeks earlier. I look after expectant mothers from Noida, Greater Noida, Ghaziabad and Delhi NCR at Prakash Hospital, Sector 33. To book a consultation, call +91 97023 46853.
Related reading
- Normal delivery vs caesarean section
- VBAC: birth after caesarean
- Labour contractions vs false labour
- Gestational diabetes in pregnancy
- Preeclampsia warning signs
This article is for general education. Decisions about induction should always be made with your own obstetrician.
