Risks of Delivery for Overweight Moms at 35 Weeks Pregnant - Obstetrics and Gynecology

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At 35 weeks of pregnancy, the baby girl weighs 2977g, and there is no vaginal bleeding, no obvious uterine contractions, and the mother is considered overweight.
What are the potential risks and complications associated with delivery in this situation?

Guagua Mei, 30~39 year old female. Ask Date: 2018/08/29

Dr. Cai Yonglong reply Obstetrics and Gynecology


Fear of macrosomia can be associated with diabetes or a family history.
It is advisable to test for "blood glucose," "urine glucose," and "glycated hemoglobin," and to visit an obstetrics and gynecology clinic.

Reply Date: 2018/08/29

More Info


When considering the risks of delivery for an overweight mother at 35 weeks pregnant, several factors must be taken into account. At this stage of pregnancy, the baby is weighing approximately 2977 grams, which is within a normal range for fetal growth. However, being overweight can introduce various complications during labor and delivery that both the mother and baby should be aware of.

1. Increased Risk of Gestational Diabetes: Overweight mothers are at a higher risk of developing gestational diabetes, which can lead to complications such as macrosomia (having a larger than average baby), preterm birth, and the need for cesarean delivery. It is advisable for the mother to undergo screening for gestational diabetes if she has not already done so.

2. Labor Complications: Overweight mothers may face challenges during labor, including prolonged labor, difficulty in fetal monitoring, and a higher likelihood of requiring interventions such as forceps or vacuum assistance. The excess weight can also make it more difficult for the mother to find comfortable positions during labor.

3. Increased Risk of Cesarean Delivery: Studies have shown that overweight and obese women have a higher likelihood of needing a cesarean section. This can be due to factors such as prolonged labor, fetal distress, or complications arising from the mother's weight.

4. Anesthesia Complications: If a cesarean delivery is necessary, the administration of anesthesia can be more complicated in overweight individuals. There may be a higher risk of complications related to epidural or spinal anesthesia, including difficulty in placement and increased risk of side effects.

5. Postpartum Complications: Overweight mothers may experience a higher incidence of postpartum complications, such as infections, excessive bleeding, and delayed recovery. Additionally, they may face challenges with breastfeeding due to physical discomfort or complications.

6. Fetal Risks: While the current weight of the baby is within a normal range, being overweight can increase the risk of having a larger baby (macrosomia), which can complicate delivery. Macrosomia can lead to shoulder dystocia, where the baby's shoulder gets stuck during delivery, posing risks to both the baby and mother.

7. Monitoring and Management: It is crucial for overweight mothers to have regular prenatal check-ups to monitor their health and the baby's development. This includes monitoring blood pressure, weight gain, and any signs of complications. Nutritional counseling may also be beneficial to ensure a balanced diet that supports both maternal and fetal health.

8. Psychological Considerations: The emotional and psychological aspects of pregnancy can also be affected by being overweight. Mothers may experience anxiety or stress related to their weight and the potential risks associated with delivery. Support from healthcare providers, family, and friends can be invaluable during this time.

In conclusion, while being overweight can present certain risks during delivery, it is essential for the mother to maintain regular communication with her healthcare provider. They can provide personalized advice and interventions to mitigate these risks. Engaging in a healthy lifestyle, including balanced nutrition and appropriate physical activity, can also contribute to a safer delivery experience. It is important to remember that every pregnancy is unique, and with proper care and monitoring, many overweight mothers can have healthy deliveries.

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