Types of Placental Disorders
The placenta is a structure that develops inside the uterus during pregnancy and provides oxygen and nutrition to the baby and eliminates waste products. The placenta connects to the baby through the umbilical cord. Normally, the placenta attaches at the top or side of the uterus. In some cases, the placenta develops in the wrong location or attaches itself too deeply into the uterine wall. These placental disorders are called placenta previa, placenta accreta, placenta increta or placenta percreta.
Placental disorders are usually diagnosed by ultrasound in the second trimester (about 18 to 20 weeks into a pregnancy).