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Side effects
Side effects

Epidurals are usually safe, but as with all medical treatments, side effects and complications can sometimes happen.

For more on side effects of epidurals in labour, read about pain relief in labour

Low blood pressure

It's normal for your blood pressure to fall a little when you have an epidural. Sometimes this can make you feel sick.

Your blood pressure will be closely monitored. If necessary, fluids and medicine can be given through a drip to keep your blood pressure normal.

Loss of bladder control

After having an epidural, you may not be able to feel when your bladder is full because the epidural affects the surrounding nerves.

A catheter may be inserted into your bladder to allow urine to drain away. Your bladder control will return to normal when the epidural wears off.

Itchy skin

This can be a side effect of the pain relief medicines that may be used in your epidural.

Medicine can be given to help the itching, or the medicine in the epidural can be changed.

Feeling sick

Feeling sick (nausea) is less common with epidural medicines than with other pain relief medicines such as morphine and other opiates.

It can be treated with anti-sickness medicines, or by raising your blood pressure if it's low.

Inadequate pain relief

The epidural may not block all your pain. You may be offered an extra, or alternative, pain relief method.

Headache

A severe headache can happen if the bag of fluid that surrounds your spine is accidentally punctured. You may need specific treatment for the headache.

A procedure known as a blood patch may be used to seal the puncture. It involves taking a small sample of your blood and injecting it into the puncture.

When the blood thickens (clots), the hole will be sealed and your headache will stop.

Not all headaches from an epidural require a blood patch. Your anaesthetist will discuss your options with you.

Slow breathing

Occasionally, some medicines used in an epidural can cause slow breathing or drowsiness.

You will be monitored closely to look for this, and it can be treated easily.

Temporary nerve damage

The needle or epidural tube can damage nerves, but this is uncommon. Nerve damage can cause loss of feeling or movement in parts of your lower body.

The most common symptom is a small, numb area with normal movement and strength. This usually gets better after a few days or weeks, but can sometimes take months.

Infection

An infection can sometimes happen around the skin next to the epidural tube.

It's rare for the infection to spread. Antibiotics may be necessary or, rarely, emergency surgery.

Permanent nerve damage

In rare cases, an epidural can lead to permanent loss of feeling or movement in, for example, 1 or both legs.

The causes are:

  • direct damage to the spinal cord from the epidural needle or catheter
  • infection deep in the epidural area or near the spinal cord
  • bleeding in the epidural area, causing pressure on the spinal cord
  • accidentally injecting the wrong medicine into the epidural catheter

These are rare events, and anaesthetists have extensive training to reduce the chances of these complications.

Nerve damage can also happen for other reasons during surgery, which are unrelated to the epidural.

Other complications

Other, very rare, complications of an epidural include:

  • fits (convulsions)
  • severe breathing difficulties
  • death

Before deciding to have an epidural, you should discuss the procedure with your anaesthetist.

They can provide further information and advice on the risks of developing complications.

Last Reviewed
03 February 2023
NHS websiteNHS website
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Hedgegrail Pharmacy in Stoke Poges offers a wide range of prescription and over-the-counter medications, as well as health and beauty products
Company Registration: 2041755
Premises GPhC: 1099892
Superintendent: Baljit Singh Bahra
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