Health advice

Sciatica in pregnancy

Pregnant woman sat on bed scrolling on her phone.

Up to 17% of women experience sciatica during pregnancy

Sciatica is a condition that causes pain in the lower back, bottom, legs and feet. You might experience it during your pregnancy. Learn about the reasons why you might be affected by it and what you can do to relieve the pain it causes.

Reviewed by: Gareth Williams

Published: January 2025

Next review: January 2028

Gareth Williams, Clinical Pharmacist
Why does sciatica happen in pregnant women?

Pregnancy causes a variety of changes to happen to your body as your baby grows and develops. Some of these changes could increase your risk of developing sciatica. These include:

  • Slipped or herniated disk
  • Water retention
  • Weight gain
  • Uterus expansion
  • Changes to your center of gravity
  • Your baby’s head resting on your sciatic nerve.
When does sciatica affect pregnancies?

Although sciatica can happen at any point in your pregnancy, it usually occurs in the third trimester. This is when you will experience the most change to your body.

You can speak to your midwife or GP, if your sciatica is making it difficult to carry out normal tasks or is causing severe pain.

How can I relieve sciatica?

To help alleviate the pain of sciatica, you can:

  • Avoid standing for long periods. Standing for too long can put pressure on your sciatic nerve and worsen your pain. Take time to rest to help ease your pain.
  • Start swimming. Swimming is a great activity for a variety of reasons. The water can help support your weight, so you relieve the pressure on your sciatic nerve.
  • Sleep on the opposite side to your pain. Sciatica typically only affects one side of your body. To avoid compressing or irritating your sciatic nerve as you sleep, you should try sleeping on the side of your body that isn’t affected.
  • Use a pregnancy support pillow. A sleeping aid like a pregnancy pillow can help in making sure that your pelvis is in the right position as you lay down. This can help you avoid trapping or compressing your sciatic nerve.
Where can I go for further information and support?

NHS website

Advice and resources on a variety of health conditions, including pregnancy and sciatica for people living in England.

Pain Concern

A UK based charity for people who live with pain. They offer advice, information and support for anyone going through pain to help improve their quality of life.

Pain UK

Dedicated to helping people with pain conditions, Pain UK has a variety of resources online to help people manage their symptoms and get the help they need.

Tommy's

A charity designed to support parents through pregnancy and baby loss. It has lots of information online about different challenges during pregnancy and as well as a hotline for those in need of immediate support.

SIDE BAR