Placenta accreta is a serious pregnancy condition where the placenta grows too deeply into the wall of the uterus, making it difficult or impossible to separate safely after birth. It can cause heavy bleeding (hemorrhage) for the mother and often requires a carefully planned delivery, sometimes with surgery such as cesarean hysterectomy.

What is placenta accreta?

  • In a typical pregnancy, the placenta attaches to the inner lining of the uterus and then detaches easily after the baby is born.
  • In placenta accreta , the placental tissue abnormally adheres into the uterine muscle layer (myometrium), so it does not detach normally and can tear blood vessels when doctors try to remove it.

Placenta accreta spectrum (PAS)

Doctors often talk about a “placenta accreta spectrum,” which includes three main levels of depth.

  • Placenta accreta: Villi attach abnormally to, but not deep into, the myometrium.
  • Placenta increta: Placental tissue invades more deeply into the uterine muscle.
  • Placenta percreta: Placenta grows through the entire uterine wall and may reach nearby organs such as the bladder.

Why it is dangerous

  • The biggest risk is severe bleeding during or after delivery because the placenta cannot separate cleanly; this can be life‑threatening and may require blood transfusions, intensive care, or removal of the uterus.
  • Other possible complications include preterm birth, need for early cesarean section in a specialized center, injury to nearby organs, and higher risk of maternal morbidity and mortality.

Who is at higher risk?

Common risk factors include:

  • Previous cesarean section (risk increases with each C‑section)
  • Placenta previa (placenta covering or near the cervix) in the current pregnancy
  • Prior uterine surgery (myomectomy, D&C, uterine curettage) or uterine scarring
  • Higher maternal age and multiple previous pregnancies (multiparity)

Diagnosis and treatment

  • Diagnosis is usually suspected on routine ultrasound when the placenta looks abnormal (for example, very vascular or invading the wall), sometimes confirmed with MRI in complex cases.
  • Management typically involves:
    • Care in a high‑risk pregnancy (maternal–fetal medicine) center
    • Planned early cesarean delivery, often combined with hysterectomy without trying to remove the placenta, to reduce bleeding risk.

If you or someone you know has been told they might have placenta accreta, it is important to discuss a detailed delivery plan with a specialist team and to seek urgent care for any heavy bleeding, pain, or contractions in pregnancy.

TL;DR: Placenta accreta is when the placenta attaches too deeply into the uterus, cannot separate normally after birth, and can cause severe bleeding, so pregnancies with this condition need careful planning and specialist care.

Information gathered from public forums or data available on the internet and portrayed here.