Labor & birth
Labor Epidural: What to Expect
An epidural is the most effective pain relief in labor, and also the one with the most myths around it. Here's a straight, anesthesiologist-written account of what actually happens, what it feels like, the real side effects, and the truth about back pain, C-sections and timing.
The short version
Where the epidural actually goes
Local anesthetic is placed in the epidural space in your lower back — just outside the sac of fluid around the spinal cord — through a fine tube (catheter) that stays in so it can be topped up. That's the difference from a one-shot spinal: the catheter lets the relief continue through labor.
How it's placed, step by step
- You sit or lie curled forward to open the spaces between the bones; staying still matters.
- The skin is cleaned and numbed with local anesthetic — a brief sting.
- The anesthesiologist places the catheter; you feel pushing and pressure, not usually sharp pain.
- The tube is taped up your back and a test dose given; pain relief builds over about 15–20 minutes.
- It's then topped up — by the team, a pump, or a button you press yourself (patient-controlled).
What it feels like
As it works, contractions fade to pressure or disappear. Your legs may feel heavy, warm or tingly and weak — that's expected. You stay awake and alert. If one area is still painful or one side works more than the other, tell your team — the dose or the catheter can be adjusted.
Side effects and trade-offs
- Lower blood pressure — common and watched closely with fluids and monitoring.
- Heavy or weak legs — you'll usually stay in bed unless it's a low-dose mobile epidural.
- A urinary catheter — because you may not feel the urge to pass urine.
- Itching or shivering — mild and temporary.
- A longer pushing stage and more assisted deliveries (forceps/ventouse) — but not more C-sections.
- Headache — uncommon. A specific 'post-dural-puncture' headache can occur if the fluid sac is accidentally nicked; it's treatable.
- Serious complications such as nerve damage are very rare.
Myths, cleared up
Three things people get told that aren't true
“An epidural means you'll end up with a C-section.” It doesn't raise the C-section rate. It can lengthen pushing and make forceps/ventouse a bit more likely.
“It's too late / you've gone too far for an epidural.” Usually you can still have one well into labor — there's no fixed cut-off. It's only impractical if birth is imminent.
When an epidural may not be possible
Most people can have one, but it may be ruled out by a low platelet count or clotting problem, certain blood-thinning medicines, an infection at the insertion site, some spinal or neurological conditions, or simply a labor moving too fast to place one safely. If any of these might apply to you, ask to meet the anesthetic team before labor so a plan is ready in advance.
Frequently asked questions
Does an epidural hurt to put in?
You'll feel a sting from the local anesthetic that numbs the skin first, then mostly pushing or pressure rather than sharp pain. The hardest part is usually staying still and curled over through a contraction while it's placed, which takes around 10–20 minutes to set up. Your anesthesiologist talks you through it.
Is it ever too late to have an epidural in labor?
Usually you can have one well into established labor — there isn't a fixed cut-off like 'past 7 cm'. It can become impractical only if the baby is arriving very soon, because the epidural needs time to be placed and to work, and you need to keep still. If you think you might want one, it's reasonable to ask sooner rather than at the very end.
Do epidurals cause long-term back pain?
The good evidence says no — studies don't show that epidurals cause ongoing back pain. Backache is very common after pregnancy and birth whether or not you had an epidural, which is why the two often get linked. You may have a day or two of tenderness at the small insertion site, but that's local and short-lived.
Does an epidural increase the chance of a C-section?
No — having an epidural does not raise your risk of needing a cesarean. It can slightly lengthen the pushing (second) stage and modestly increase the chance of an assisted delivery with forceps or ventouse, and it means you'll have a urinary catheter and continuous monitoring. But the C-section rate itself is not increased.
Can everyone have an epidural?
Most people can, but not everyone. It may not be possible if you have a low platelet count or a clotting problem, are on certain blood-thinning medicines, have an infection at the site, or in some specific spinal or medical conditions. A very fast labor may also leave no time. If you have any of these, ask to meet the anesthetic team in advance so there's a plan.
What is a 'walking' or mobile epidural?
It's a lower-dose technique (often a combined spinal-epidural) that aims to relieve pain while preserving more leg strength and sensation, so some people can stand or shift position with help. Whether you can actually walk depends on the dose and your unit's policy — many keep you safely supported rather than freely walking.