Cervical cerclage, also known as a cervical stitch, is a procedure done during pregnancy in which your doctor will sew your cervix closed. The cervix is a funnel-shaped tissue that opens during childbirth so the baby can move out of the uterus and through the vagina.
Your doctor will do it if they think your baby might arrive too early or that you could miscarry because your cervix is weak. You can have it done at a hospital or a surgical centre.