Epidural During Labor: How It Works, Pros & Cons

The epidural is the most common form of pain relief during labor in the U.S., used in approximately 71% of vaginal births and nearly all C-sections. It’s effective and generally safe, but it isn’t right for everyone. This guide explains how an epidural works, exactly what to expect during placement, and the evidence-based pros, cons, and risks — drawn from ACOG and the American Society of Anesthesiologists.

📌 Key Takeaway: According to the WHO, continuous labor support reduces C-section risk by 25% and shortens labor duration. This guide gives you evidence-based, practical guidance you can apply today. For a related deep dive, see our guide on natural birth vs epidural.

What Is an Epidural?

An epidural is regional anesthesia delivered into the epidural space outside the spinal cord membrane in the lower back. A thin catheter delivers continuous medication (a combination of local anesthetic, like bupivacaine, and a low-dose opioid, like fentanyl), numbing the abdomen, pelvis, and legs.

It is different from:

• Spinal block — single injection, used mostly for C-sections
• Combined spinal-epidural (CSE) — combines fast spinal onset with continuous epidural; sometimes called the “walking epidural”

How an Epidural Is Placed

1. IV fluids are started — bolus of fluids reduces blood pressure drop
2. Position: sitting up and leaning forward, or curled on your side
3. Cleaning of the lower back with antiseptic
4. Local anesthetic injection at the placement site (small sting)
5. Epidural needle inserted into the epidural space (pressure sensation)
6. Catheter threaded through the needle and taped to your back
7. Test dose confirms placement
8. Continuous medication begins; typically takes 10-20 minutes for full effect

The whole process usually takes 10-15 minutes. You must stay still during placement, even if a contraction comes.

When You Can Get One

• Earliest: Once labor is established (often 4-6 cm) — no formal “too late” cutoff
• Latest: As long as the anesthesiologist has time to place it before delivery
• Some hospitals will place during early labor; policies vary

What You’ll Feel

Within 10-20 minutes of placement:

• Warmth, then numbness from the lower abdomen down
• Heavy feeling in legs (often can’t lift them)
• Reduced or eliminated contraction pain
• May still feel pressure (especially during pushing)
• Generally awake and alert (low-dose anesthetic doesn’t sedate)

Pros of Getting an Epidural

1. Excellent Pain Relief

About 85-95% of women report adequate to excellent pain relief. For long labors, this can be transformative.

2. Allows You to Rest

A long induction or stalled labor can be exhausting. An epidural lets you nap, conserve energy for pushing.

3. Lower Stress Hormones

Severe labor pain raises catecholamines (stress hormones), which can slow labor. Pain relief can normalize hormones.

4. Useful for Difficult Labors

• Posterior babies (back labor)
• Long inductions
• Twin or breech (some) births
• Quickly converted to surgical anesthesia if C-section becomes necessary

5. Doesn’t Affect Baby’s Alertness

Unlike systemic opioids (e.g., IV fentanyl), epidurals deliver minimal medication to the baby. APGAR scores are typically unaffected.

6. Maintains Mental Clarity

You stay fully awake and aware throughout the experience.

Cons and Side Effects

Common (Typically Manageable)

• Drop in blood pressure (10-30%) — managed with IV fluids and medication
• Itching — common with the opioid component
• Shivering — common with or without epidural
• Nausea
• Difficulty urinating — usually requires a urinary catheter
• Patchy or one-sided block (5-15%) — may need repositioning or replacement

Less Common

• Inadequate pain relief in 5-15%
• Spinal headache (1-2%) — leak of spinal fluid; may need a “blood patch” treatment
• Backache at site for days to weeks after — usually mild
• Slower second stage — research shows pushing may be 15-60 minutes longer with epidural
• Increased chance of instrumental delivery (vacuum/forceps) — modest increase
• Fever in mom — somewhat common, often not infectious

Rare but Serious

• Nerve damage (1 in 24,000 to 1 in 240,000)
• Epidural hematoma (extremely rare; risk higher if on blood thinners)
• Severe allergic reaction (extremely rare)
• Total spinal block (extremely rare; managed by anesthesia team)

Things It Does NOT Cause

• Permanent paralysis (extraordinarily rare)
• Higher C-section rate (decades of research show it does NOT increase cesarean risk)
• Lasting back pain (research has not found a causal link)
• Difficulty breastfeeding (mixed evidence; most studies show no significant impact)

Who Should NOT Get an Epidural

• Active infection at the placement site
• Significant clotting disorders or current anticoagulant use
• Severe spinal conditions (some)
• Severe hypotension or hypovolemia
• Patient refusal

Alternatives to an Epidural

If you’d rather avoid an epidural or are not a candidate:

What Happens After Delivery?

• Catheter is removed (usually painless)
• Numbness wears off in 1-3 hours
• IV is typically kept in until you can walk safely and urinate
• You’ll be helped to the bathroom on first attempt

Cost of an Epidural

In 2026, the placement and continuous management typically bills $2,000-$5,000. Most insurance plans cover epidurals, though deductibles and coinsurance apply. If you’re estimating delivery costs, see our cost of having a baby breakdown.

Frequently Asked Questions

Does an epidural hurt?

The placement involves a small sting from the local anesthetic, then pressure. Most women report it’s much less painful than they feared, especially compared to active labor contractions.

Can I still feel the urge to push with an epidural?

Yes — most modern, low-dose epidurals preserve the urge to push. Some women feel pressure but not pain; others request the dose lowered for pushing.

Will an epidural slow down my labor?

The effect on stage 1 (dilation) is minimal. Stage 2 (pushing) may be 15-60 minutes longer on average. Outcomes for babies are unchanged.

Can I walk with an epidural?

Most labor epidurals make your legs too heavy to walk safely. A “walking epidural” (low-dose CSE) may allow some movement at certain hospitals.

Does an epidural increase the chance of a C-section?

No. Multiple large studies and Cochrane reviews have found epidurals do not increase the C-section rate compared to no epidural.

💡 Related Resources: After baby arrives, visit our sister site baby.chparenting.com for newborn care, sleep training, feeding guides, and developmental milestones.

References

1. ACOG — Pain Relief During Labor and Delivery: https://www.acog.org/womens-health/faqs/medications-for-pain-relief-during-labor-and-delivery
2. American Society of Anesthesiologists — Labor and Delivery: https://www.asahq.org/madeforthismoment/pain-management/childbirth/
3. Cochrane Review — Epidural versus non-epidural or no analgesia for pain management in labour: https://www.cochrane.org/CD000331
4. Mayo Clinic — Epidural Block: https://www.mayoclinic.org/tests-procedures/epidural-block/about/pac-20393058

Medical Disclaimer

This article is for general informational purposes only and is not a substitute for medical advice. Discuss the risks, benefits, and alternatives of pain relief options with your obstetric and anesthesia teams.

Written by

Vega Lin

Founder & Editor — Mother of 2 (Taiwan)

Vega writes Pregnancy Guide from the intersection of evidence-based research (ACOG, CDC, WHO) and her own experience as a mother of two. Completing her Master's in Digital Innovation at Tunghai University. Read more →

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