Can a mild bicornuate uterus affect pregnancy?

Question

Hello doctor,

I am currently 12.5 weeks pregnant with my second baby. My first child is ten months old. This is my third pregnancy, following one early loss. I was diagnosed with a mild bicornuate uterus, which has also been referred to as arcuate.

My first live birth was a normal vaginal delivery at 39 weeks, and the baby weighed seven pounds. There were no issues throughout that pregnancy. In this pregnancy, the baby is measuring smaller than my expected dates, and I am overall worried about the outcome. My doctor has not addressed any concerns, but with my uterine shape and the close age gaps between my children, I am worried that I will not be as lucky this time around. Is it possible to have two successful pregnancies back-to-back with this abnormality?

Kindly provide your insight.

Answer 1

Hello,

Welcome to icliniq.com.

I read your query and understood your concern.

Understandably, you are concerned about your current pregnancy given your history of a bicornuate or arcuate uterus and the close timing between your pregnancies. A bicornuate uterus is a congenital anomaly where the uterus has a heart-shaped or partially divided structure. An arcuate uterus is a milder variation of this condition, characterized by a slight indentation at the top of the uterus. Both conditions can be associated with an increased risk of complications such as miscarriage, preterm birth, or abnormal fetal positioning. However, many women with these uterine anomalies experience successful full-term pregnancies, as was the case with your first child.

Since your first pregnancy resulted in a normal vaginal delivery at 39 weeks with no complications, this is a reassuring factor. It suggests that your uterine shape did not significantly impact your ability to carry a pregnancy to term, which is a positive sign for your current pregnancy as well.

Regarding the baby's size, while it is understandable to be concerned about the baby measuring smaller than expected, it is important to recognize that early pregnancy measurements can sometimes vary without indicating a serious issue. Fetal growth will be closely monitored through regular ultrasounds, and your healthcare provider will assess the situation in more detail as the pregnancy progresses.

The close spacing between your pregnancies is another factor to consider, but many women have back-to-back successful pregnancies without complications. It is essential to continue attending your prenatal appointments and communicate your concerns with your doctor. They will monitor fetal growth, placental health, and uterine function to ensure that both you and your baby are progressing well.

In summary, while your concerns are valid, the fact that you had a healthy full-term delivery with your first pregnancy is a positive indicator. Close monitoring and regular follow-ups with your healthcare team will be key in ensuring a successful outcome for this pregnancy as well.

I hope this has helped you.

Kindly follow up if you have more doubts.

Thank you.