Pregnancy Over 40: Bicornate UterusSome women are born with a defect in their uterus.
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There is something called a bicornate uterus where it looks somewhat like a heart shape. It is possible to have a successful pregnancy, however there can also be complications with a a uterus that isn't the normal pear shape. Read more:
Let’s Talk About Having a Bicornuate Uterus (pregnancy.families.com)
The reason that a pregnancy may not reach full-term in a bicornuate uterus often happens when the baby begins to grow in either of the protrusions at the top. The pregnancy will usually end in a miscarriage because there is not enough room for baby to grow there. As a normal uterus will expand with a growing baby, the septum area of the bicornuate uterus cannot expand enough to accommodate growth. According to research, there is a 55 -63% fetal survival rate associated with the condition.
If the baby happens to implant itself in the largest part of the uterus, it will have a chance of growing to full-term. However these babies often find themselves in an abnormal presentation, such as breech or transverse, since they may find it difficult to fit comfortably in a head-down position. The larger the baby grows the more likely this will be, thus there is a 15-25% rate of preterm delivery of these infants. Because of this and other factors, a pregnant woman with a bicornuate uterus will most likely be considered high-risk.
The condition may also cause fetal growth retardation, which is defined as having less than ten percent of fetal weight according to gestational age of the baby, but this is rare. More often, the baby will simply not survive or it will thrive normally but deliver prematurely. Sometimes various other birth defects of the baby can result
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