Managing Excess Amniotic Fluid and Fetal Growth Concerns in Pregnancy - Obstetrics and Gynecology

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Polyhydramnios and macrosomia?


Hello, Doctor.
I am currently 33 weeks pregnant.
Since around 20 weeks, my obstetrician has been telling me that I have polyhydramnios.
My blood sugar levels have been elevated, but the detailed ultrasound and amniocentesis results were normal.
The doctor checked the fetal stomach, and it was also normal.
During the second trimester, I did consume a lot of fruits, but in the third trimester, my intake has decreased to just three meals and a late-night snack due to staying up late.
However, I still have excess amniotic fluid.
Can we rule out fetal issues as the cause of the polyhydramnios? How can I improve the situation with the excess amniotic fluid? My obstetrician only advised me to reduce sweets, but I don't think I've been consuming a lot of sugary foods.
At 33 weeks, my weight has decreased by 1 kg compared to 30 weeks, but the fetus is measuring at 36 weeks.
Is this possible? I have been eating normally without intentionally increasing my intake!

253, 20~29 year old female. Ask Date: 2017/10/18

Dr. Huang Jianzhong reply Obstetrics and Gynecology


Currently, I am 33 weeks pregnant.
Since around 20 weeks, my obstetrician has been telling me that I have polyhydramnios.
My blood sugar levels have been elevated at times, but the high-level ultrasound and amniocentesis results were normal.
The doctor also checked the fetal stomach and found it to be normal.
During the second trimester, I did consume a lot of fruits, but in the third trimester, my intake has decreased to three meals and a late-night snack due to staying up late.
However, I still have polyhydramnios.
Can we rule out fetal issues as the cause of the excess amniotic fluid? How can I improve the situation of polyhydramnios? My obstetrician only advised reducing sweets, but I don't think I consume a lot of sugary foods.
At 33 weeks, my weight has decreased by 1 kilogram compared to 30 weeks, yet the fetus is measuring at 36 weeks.
Is this possible? During this period, I have maintained a normal three-meal routine without intentionally increasing my caloric intake!
Answer: Polyhydramnios is rarely caused by fetal congenital anomalies.
Regarding the elevated blood sugar levels, as advised by your obstetrician, reducing sugary foods is recommended.

Reply Date: 2017/10/18

More Info


Managing excess amniotic fluid, also known as polyhydramnios, and addressing fetal growth concerns during pregnancy can be complex and requires careful monitoring and management. Given your situation at 33 weeks of pregnancy, where you have been informed of excess amniotic fluid since the second trimester, it is essential to understand the potential causes and implications.

Polyhydramnios can arise from various factors, including maternal diabetes, fetal anomalies, multiple pregnancies, or even idiopathic causes where no specific reason is identified. In your case, it is reassuring that your blood sugar levels have been monitored and found to be elevated at times, but you have undergone thorough evaluations, including high-level ultrasound and amniocentesis, which have returned normal results. This suggests that there may not be an underlying fetal anomaly contributing to the excess fluid.

The fact that you have been consuming a lot of fruits during the mid-pregnancy phase could have contributed to higher sugar intake, but it is good to hear that you have moderated your diet in the later stages. While it is essential to limit sugary foods, polyhydramnios can still occur even with a balanced diet. It is crucial to continue monitoring your diet and ensure that you are consuming a well-rounded intake of nutrients without excessive sugars or carbohydrates.

Regarding your concern about the fetal growth, it is not uncommon for fetal growth to be ahead of the gestational age, especially if the mother has polyhydramnios. The fetus may be larger due to various reasons, including genetic factors, nutritional intake, or even the presence of excess amniotic fluid. It is essential to keep in close contact with your healthcare provider to monitor fetal growth through regular ultrasounds and assessments.

To manage the excess amniotic fluid, here are some strategies that may be recommended:
1. Dietary Adjustments: Continue to focus on a balanced diet that is low in refined sugars and carbohydrates. Incorporate plenty of vegetables, lean proteins, and whole grains. Staying hydrated is crucial, but be mindful of excessive fluid intake if advised by your doctor.

2. Monitoring: Regular follow-ups with your healthcare provider are essential. They may recommend more frequent ultrasounds to monitor the amount of amniotic fluid and the growth of the fetus.

3. Activity Level: Maintaining a moderate level of physical activity, as advised by your healthcare provider, can help manage weight and overall health during pregnancy.

4. Addressing Underlying Conditions: If any underlying conditions are identified, such as gestational diabetes or other metabolic issues, appropriate management strategies should be implemented.

5. Consideration of Delivery Timing: If the polyhydramnios is severe or if there are concerns about fetal well-being, your healthcare provider may discuss the timing of delivery to ensure the best outcomes for both you and your baby.

In conclusion, while polyhydramnios can be concerning, it is essential to work closely with your healthcare team to monitor the situation and make necessary adjustments to your care plan. Regular communication with your obstetrician will help ensure that both you and your baby remain healthy throughout the remainder of your pregnancy. If you have any further questions or concerns, do not hesitate to reach out to your healthcare provider for personalized advice and support.

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