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High-risk pregnancy: Know what to expect

Pregnancy complications

Some health problems that develop during pregnancy can cause problems. Examples include:

  • Unusual location of the placenta.
  • Very low fetal growth. Usually, overall fetal growth or a fetal abdomen size that's less than the 10th percentile for gestational age is cause for concern. This condition is called fetal growth restriction.
  • Rh sensitization. This happens when a pregnant person's blood group is Rh negative and the fetus's blood group is Rh positive.