Cervical stitch or suture to prevent preterm birth

A cervical stitch or suture (also known as cervical cerclage) is a surgical procedure where stitches are placed around the cervix (neck of the womb) to help it stay closed during pregnancy. The stitch gives some extra support to the cervix. A cervical stitch may be discussed as a treatment to reduce the chance of your baby being born early. 

The other treatment that might be offered to reduce the chance of preterm birth is progesterone. Your doctor or midwife should discuss the different options with you. Which one is right for you will depend on why your baby is at risk of being born early. You may be offered internal (vaginal) scans to check the neck of the womb to help you and your doctor decide. 

There may be instances when a stitch can’t be done. This includes issues such as:

  • Vaginal bleeding
  • Signs of infection
  • Your waters have broken
  • You are having contractions

 

If this is the case, you might be offered progesterone. 

Speak to your doctor or midwife about whether a cervical stitch might be an option for you. Especially if in a previous pregnancy you've gone into labour early or had a late miscarriage. 

If a cervical stitch is recommended, ask your doctor what you should expect when the stitch is in place, who to contact if you have questions or concerns and what to do if you think labour is starting

 

Page last updated: March 2025

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