VBAC after placenta previa: what to know

Placenta previa means the placenta was low in the uterus and may have covered or approached the cervix. A previous diagnosis does not by itself show where the placenta will attach in a later pregnancy. Ultrasound is used to assess its current position and its relationship to the cervix and the caesarean scar.

The team will also review the uterine incision and the reason for the earlier caesarean. If the current placenta overlies the cervix or bleeding is a concern, vaginal birth may not be appropriate.

Attend the recommended ultrasound appointments and ask when placental position will be checked again. A Growth Scan may help assess fetal growth when your clinician recommends it, but it does not replace assessment of the cervix or scar. Keep your prior operative and scan records available.

Ask where you should go if bleeding begins and whether your planned birth setting has blood, anaesthetic and surgical support. The final plan may remain open until later pregnancy findings are clear.

During pregnancy, contact your maternity unit urgently for any vaginal bleeding, even if it is light or painless, and seek emergency help for heavy bleeding, dizziness, faintness or severe pain. In labour, report bleeding, continuous abdominal pain, contractions or reduced fetal movement without delay.

Where is the placenta in this pregnancy, and does it cover or approach the cervix? Will repeat imaging be needed? What did my previous caesarean report say about the uterine incision? Which symptoms require immediate hospital assessment?