Low-lying placenta and normal delivery: what should you know?

The placenta may lie close to, or cover, the opening of the cervix. Its position can change as the uterus grows, so an early finding does not always determine the birth method. The care team uses ultrasound to see the placenta’s relationship to the cervix and checks for bleeding or other pregnancy concerns. If the placenta remains over or very close to the opening, vaginal birth may be unsafe because the placenta can obstruct the baby’s route or bleed as the cervix changes.

Attend the follow-up scans your maternity team recommends and ask what the latest measurement means for your birth plan. Follow personalised advice about sex, examinations, travel, and activity, particularly if you have had bleeding. Keep your maternity unit’s contact details available and tell every clinician that the placenta has been low. If a caesarean is advised, ask when it is planned and what symptoms should bring you to hospital sooner. A growth scan may be used when your team wants to monitor the baby’s growth alongside placental findings.

Contact your maternity unit immediately for any vaginal bleeding, contractions, abdominal pain, dizziness, or reduced fetal movement, even if the bleeding seems small. Use the emergency service if bleeding is heavy, you feel faint, or you are seriously unwell. Do not wait for a scheduled scan when warning symptoms occur.

How close is the placenta to the cervix on my latest scan? When will its position be checked again? Are there activities or examinations I should avoid? What would make a vaginal birth unsafe? When should I come straight to hospital?