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In placenta previa, the placenta attaches low in the uterus. The placenta might partially or completely cover the opening of the uterus, called the cervix. Placenta previa can cause severe bleeding in the mother before, during or after delivery.
Placenta previa is diagnosed through ultrasound, either during a routine prenatal appointment or after an episode of vaginal bleeding. Most cases of placenta previa are diagnosed during a second-trimester ultrasound exam. The initial diagnosis may be done with an ultrasound device on your abdomen.
In placenta previa, the placenta is located low in the uterus. The placenta might partially or completely cover the cervix, as shown here. Placenta previa can cause severe bleeding in a pregnant person before or during delivery.
Placenta previa. La placenta es un órgano que se desarrolla en el útero durante el embarazo. En la mayoría de los embarazos, la placenta se une a la parte superior o lateral del útero. En los casos de placenta previa, la placenta se une a la parte inferior del útero.
Placenta accreta occurs when the placenta grows too deeply into the uterine wall during pregnancy. Scarring in the uterus from a prior C-section or other uterine surgery may play a role in developing this condition. Placenta accreta is considered a high-risk pregnancy complication.
Placental abruption occurs when the placenta partly or completely separates from the inner wall of the uterus before delivery. This can decrease or block the baby's supply of oxygen and nutrients and cause heavy bleeding in the mother.
Preeclampsia increases your risk of placental abruption. With this condition, the placenta separates from the inner wall of the uterus before delivery. Severe abruption can cause heavy bleeding, which can be life-threatening for both the mother and baby. hemolysis elevated liver enzymes and low platelet count (HELLP) syndrome.
If your water breaks before labor starts (prelabor rupture of membranes), you have a low-lying placenta, or your placenta partially or totally covers your cervix (placenta previa), your health care provider will discuss avoiding activities such as sex and exercise.
If the placenta covers the opening of the cervix (placenta previa), a C-section is recommended for delivery. Prolapsed umbilical cord. A C-section might be recommended if a loop of umbilical cord slips through the cervix in front of the baby.
Preterm labor occurs when regular contractions result in the opening of your cervix after week 20 and before week 37 of pregnancy. Preterm labor can result in premature birth. The earlier premature birth happens, the greater the health risks for your baby. Many premature babies (preemies) need special care in the neonatal intensive care unit.