[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [Anaesthesia and ICU](https://durgical.com/en/anaesthesia/) › [Regional anaesthesia](https://durgical.com/en/anaesthesia/areas/regional/) › Labour analgesia

# Labour analgesia

- Technique

Ways to ease labour pain, mainly the epidural: a thin tube in the back gives mild numbing medicine, so the mother feels far less pain but can still push.

Updated Nov 13, 2026

## Key points

- First stage pain: T10–L1 (visceral); second stage adds S2–S4 (perineal, pudendal nerve).
- Low-concentration local anaesthetic plus opioid gives analgesia with little motor block.
- Maternal request is enough; early epidural helps in pre-eclampsia, obesity, difficult airway and heart disease.
- A working labour epidural can be topped up for caesarean section, avoiding general anaesthesia.
- Watch for hypotension and fetal heart rate changes; keep the woman off her back (left uterine displacement).

On this page

- The basics Key points
- What it is
- Indications
- Equipment and preparation
- Step by step (and why)
- Next step
- Memory aid
- Elsewhere in DurgiPedia

- Clinical Options for labour pain
- Complications

- Safety Contraindications and precautions

- Study Test yourself

- Connections Connections

## What it is

Labour pain comes from two sources: in the first stage, uterine contractions and cervical dilation send visceral pain through fibres entering the cord at about T10–L1; in the second stage, stretching of the vagina and perineum adds somatic pain carried by the pudendal nerves to S2–S4. Neuraxial analgesia is the most effective method. A lumbar epidural with a low concentration of local anaesthetic combined with an opioid blocks pain while keeping most leg strength, so the woman can move and push. A combined spinal-epidural gives faster relief. The catheter is maintained by a continuous infusion, programmed boluses or patient-controlled boluses, and the same catheter can be topped up for an emergency caesarean section, avoiding general anaesthesia and its airway risks. Maternal request is reason enough in the absence of contraindications. An early epidural is particularly valuable in pre-eclampsia, obesity, a predicted difficult airway and heart disease, where it reduces the pain-driven rise in heart rate and blood pressure; in high-risk heart disease the block is extended slowly to avoid sudden falls in preload and afterload. Alternatives include inhaled nitrous oxide, systemic opioids and non-drug measures.

## Indications

- Maternal request for pain relief in labour, with no contraindication.
- Pre-eclampsia: blunts pain-driven hypertension and gives a route for caesarean anaesthesia if platelets allow.
- Predicted difficult airway or obesity: an early, tested catheter reduces the need for emergency general anaesthesia.
- Maternal heart disease: a slowly titrated block limits swings in heart rate, preload and afterload.
- Trial of labour after caesarean, multiple pregnancy and other situations with a higher chance of operative delivery.

## Contraindications and precautions

- Absolute: refusal, infection at the site, raised intracranial pressure, and uncorrected haemorrhage or hypovolaemia.
- Low platelets (as in severe pre-eclampsia or HELLP) or coagulopathy: check counts and follow anticoagulant timing rules.
- Fixed-output heart lesions (severe aortic or mitral stenosis): only slow, incremental blocks, with invasive monitoring as planned by the team.
- Maternal sepsis, spinal surgery or deformity, and neurological disease need individual assessment.
- Fetal distress needing immediate delivery may not allow time to establish a new block.

## Equipment and preparation

- Consent in simple words between contractions, a recent platelet count when indicated, and intravenous access.
- Maternal blood pressure monitoring, pulse oximetry and continuous fetal heart rate monitoring.
- Full sterile epidural set (needle, catheter, filter, loss-of-resistance syringe), and spinal needle for a combined technique.
- Low-concentration local anaesthetic with opioid, labelled, and a dedicated pump for infusion or patient-controlled boluses.
- Vasopressor, airway equipment and drugs for local anaesthetic toxicity immediately available.

## Step by step (and why)

- Assess the woman and the labour, explain risks and benefits between contractions — informed consent is possible in labour.
- Check platelets and anticoagulants when relevant and site intravenous access — protects against haematoma and hypotension.
- Sit her up or lie her on her side, back curved, with a helper — stillness during contractions prevents dural puncture.
- Insert the epidural (or combined spinal-epidural) at a lumbar interspace with full asepsis — lumbar level covers T10 to the sacrum.
- Aspirate and give a test dose between contractions — detects an intravenous or intrathecal catheter before the main dose.
- Give the low-concentration solution in increments and start the maintenance regimen — keeps leg strength and limits hypotension.
- Keep her off her back with left uterine displacement — prevents aortocaval compression and low uterine blood flow.
- Monitor blood pressure, block height, motor block and the fetal heart regularly — hypotension shows first as fetal bradycardia.
- In heart disease, extend the block slowly with close haemodynamic monitoring — avoids sudden falls in preload and afterload.
- For a caesarean, top up the catheter with a stronger solution and confirm a block to about T4 — avoids general anaesthesia.

## Options for labour pain

| Method | Effect | Main limits |
| --- | --- | --- |
| Epidural | Most effective; adjustable; can convert for caesarean | Takes time to set up; hypotension; needs monitoring |
| Combined spinal-epidural | Fastest onset, then extendable | Catheter untested at first; itching, fetal heart changes |
| Inhaled nitrous oxide | Mild relief, quick on and off | Nausea, drowsiness; partial effect |
| Systemic opioids | Moderate relief | Maternal sedation and respiratory depression; neonatal depression |
| Non-drug measures | Support, movement, warm water, massage | Limited for severe pain |

## Complications

- Maternal hypotension with fetal heart rate slowing; treat with position, vasopressor and fluid.
- Inadequate, one-sided or patchy block, which may need adjustment or a new catheter, especially before a caesarean.
- Accidental dural puncture and post-dural puncture headache in the days after delivery.
- High block, intravascular injection with local anaesthetic toxicity, itching from opioid and urinary retention.
- Intrapartum fever and a possibly longer second stage; rare haematoma, abscess or nerve injury (some nerve injuries are obstetric).

## Next step

- Record the block, the test dose, observations and fetal heart pattern; hand over the regimen to the midwife or nurse.
- Review promptly if pain returns, the block is one-sided, or the woman cannot move her legs.
- Call the senior anaesthetist early for heart disease, severe pre-eclampsia, a difficult airway or a poorly working catheter before a likely caesarean.
- After delivery, remove the catheter when anticoagulant timing allows and confirm the block has worn off.
- Follow up the next day for headache, back pain, numbness or weakness, and for passing urine.

## Memory aid

Ten to one for the uterus, two to four for the perineum.

## Test yourself

Think of the answer, then tap the question to see it.

## Which spinal segments carry pain in the first and second stages of labour?

First stage visceral pain from the uterus and cervix enters at about T10–L1; second stage adds somatic perineal pain through the pudendal nerves at S2–S4.

## Why are low-concentration solutions with an opioid used for labour epidurals?

They relieve pain while preserving most motor strength, so the woman can move and push, with less hypotension; the opioid adds analgesia without adding motor block.

## Why is an early epidural useful in a woman with a predicted difficult airway?

A tested, working catheter can be topped up for an emergency caesarean section, avoiding general anaesthesia and the risk of a failed intubation in a pregnant patient.

## How is the block managed in a woman with high-risk heart disease?

The epidural is placed early and extended slowly in small increments with close haemodynamic monitoring, avoiding the sudden fall in preload and afterload that a single-shot spinal can cause.

[Add to my cards (4)](https://durgical.app/estudiar/?add=/en/anaesthesia/labour-analgesia/)

## Elsewhere in DurgiPedia

- [Labour and postpartum nursing: monitoring and warning signs](https://durgical.com/en/nursing/labour-and-postpartum-nursing-monitoring-and-warning-signs/)
- [Patient-controlled and epidural analgesia: the nursing checks](https://durgical.com/en/nursing/patient-controlled-and-epidural-analgesia-the-nursing-checks/)
- [Gynecologic and obstetric history](https://durgical.com/en/clinical-exam/gynecologic-and-obstetric-history/)
- [Pain and temperature: pathways and modulation](https://durgical.com/en/physiology/pain-and-temperature-pathways-and-modulation/)

## Connections

## Related 6

- [Epidural anaesthesia and analgesia](https://durgical.com/en/anaesthesia/epidural-anaesthesia-and-analgesia/)
- [Spinal anaesthesia](https://durgical.com/en/anaesthesia/spinal-anaesthesia/)
- [Complications of neuraxial blocks: headache, hypotension, haematoma, infection](https://durgical.com/en/anaesthesia/complications-of-neuraxial-blocks-headache-hypotension-haematoma-infection/)
- [Anticoagulants, antiplatelets and neuraxial blocks](https://durgical.com/en/anaesthesia/anticoagulants-antiplatelets-and-neuraxial-blocks/)
- [The patient with heart disease having non-cardiac surgery](https://durgical.com/en/anaesthesia/the-patient-with-heart-disease-having-non-cardiac-surgery/)
- [Local anaesthetic systemic toxicity: the crisis](https://durgical.com/en/anaesthesia/local-anaesthetic-systemic-toxicity-the-crisis/)

## Related conditions 6

- [Preeclampsia](https://durgical.com/en/conditions/preeclampsia/)
- [Aortic Valve Stenosis](https://durgical.com/en/conditions/aortic-valve-stenosis/)
- [Mitral stenosis](https://durgical.com/en/conditions/mitral-stenosis/)
- [Immune thrombocytopenia (ITP)](https://durgical.com/en/conditions/immune-thrombocytopenia/)
- [Labour dystocia (arrest of labour, cephalopelvic disproportion)](https://durgical.com/en/conditions/labour-dystocia/)
- [Postpartum haemorrhage](https://durgical.com/en/conditions/postpartum-haemorrhage/)

## In Pharmacology 5

- [Local anesthetics](https://durgical.com/en/pharmacology/classes/local-anesthetics/)
- [Bupivacaine](https://durgical.com/en/pharmacology/bupivacaine/)
- [Ropivacaine](https://durgical.com/en/pharmacology/ropivacaine/)
- [Fentanyl](https://durgical.com/en/pharmacology/fentanyl/)
- [Phenylephrine](https://durgical.com/en/pharmacology/phenylephrine/)

[← All of anaesthesia](https://durgical.com/en/anaesthesia/)

Educational content; it does not replace supervised training, your institution's protocols or the anaesthetist's or intensivist's decision. It contains no doses and no ventilator or infusion settings.

Sources: [Epidural Anesthesia](https://www.ncbi.nlm.nih.gov/books/NBK542219/) (StatPearls (NCBI Bookshelf), 2025); [Anesthesia for Labor, Delivery, and Cesarean Section in High-Risk Heart Disease](https://www.ncbi.nlm.nih.gov/books/NBK574578/) (StatPearls (NCBI Bookshelf), 2026).

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Representative model, for educational purposes only.

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Source: https://durgical.com/en/anaesthesia/labour-analgesia/
License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/anaesthesia/labour-analgesia/