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What is the impact of parental HbE trait on fetal health?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

Hello,

Welcome to icliniq.com.

I went through your query.

As both you and your wife have the Hb E trait, there are three potential outcomes for your baby:

1. The baby could have normal hemoglobin (Hb).

2. The baby might also have the Hb E trait.

3. The baby could be homozygous for Hb E, meaning they would have Hb E disease.

4. In the first two cases, the baby will not have any significant health issues. However, if the baby has homozygous Hb E disease, they may experience mild hemolysis of their blood, which is generally manageable and not as severe as thalassemia.

To determine the baby's condition, you can test for Hb E mutations. DNA (deoxyribonucleic acid) analysis of the baby can be performed, but it should be done by an expert doctor. Additionally, you should consider getting your own DNA tested to confirm the presence of the disease.

Deciding whether to test the baby or proceed with the pregnancy is up to you. Hb E disease is not life-threatening, but you have the option to consider abortion if the baby tests positive for the disease. Keep in mind that the testing and any decision regarding abortion should be done promptly, as the procedures become more complex as the pregnancy progresses.

It is important to consult with a good hospital and experienced doctors in your area to discuss these options and make an informed decision.

If you have any further questions, feel free to ask.

I hope this clarifies your options.

Thank you.

Patient's Query

Hello doctor,

Thank you for your reply.

How is the baby's DNA tested, and do you recommend that I also undergo DNA testing?

Please help.

Hello,

Welcome back to icliniq.com.

First, it is important to get a DNA test for thalassemia and hemoglobinopathies to ensure accurate diagnosis of these conditions. This test is crucial for both parents to understand their genetic risks.

Second, if there is a concern during pregnancy, the baby's DNA can be tested through Chorionic Villus Sampling (CVS). This procedure involves inserting a needle through the mother’s abdomen to collect a small sample from the placenta, which contains the baby’s cells.

The collected sample is then analyzed to determine the baby's DNA, allowing doctors to compare the findings with the parents' genetic profiles. This helps in identifying the specific type of hemoglobin the baby has inherited.

I hope this helps.

Thank you.

Patient's Query

Hello doctor,

Thank you for your reply.

Could you explain how it is possible for our baby to have alpha or beta thalassemia?

Please help.

Hello,

Welcome back to icliniq.com.

One of you might carry an alpha thalassemia mutation in addition to the HbE trait, although this is rare. It is important to note that alpha thalassemia is only diagnosed through DNA testing and cannot be detected using HPLC (High-Performance Liquid Chromatography).

I hope this helps.

Thanks and regards.

Patient's Query

Hello doctor,

Thank you for your reply.

If both parents undergo DNA testing, can we predict the likelihood of our baby having alpha or beta thalassemia mutations?

Please suggest.

Hello,

Welcome back to icliniq.com.

If neither of you has the alpha or beta thalassemia mutation, and only carry the HbE trait, then there is no chance of your baby inheriting alpha or beta thalassemia.

Take care and stay healthy.

Thank you.

Medically reviewed byiCliniq medical review team

Published At September 20, 2024
Reviewed AtMay 27, 2026

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