Pregnancy and Food Safety: Concerns About Stomach Issues and Fetal Health - Obstetrics and Gynecology

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Having an upset stomach during pregnancy?


I am currently 28 weeks pregnant, and due to work reasons, I eat out for all three meals every day.
Recently, possibly because of the hot weather, I have noticed that I often get an upset stomach.
I am very concerned that this might affect my baby.
I would like to ask the doctor if bacteria can infect the fetus and if it could impact its development.
If I do get an upset stomach, can I take "Pepto-Bismol"? Thank you for your clarification, doctor.

Denice, 30~39 year old female. Ask Date: 2004/08/03

Dr. Jian Hongmou reply Obstetrics and Gynecology


At 28 weeks of pregnancy, the development of the fetus is largely complete, but maturity is still not sufficient.
Generally, mild gastrointestinal disturbances do not require special treatment; a light or liquid diet with small, frequent meals is usually sufficient.
In more severe cases, fasting may be necessary, and if there is no improvement, medication treatment may be required (consulting a healthcare provider).
I am not familiar with the ingredients of "Zhengluowan," so it would be more appropriate to seek treatment at an obstetrics and gynecology clinic.

Reply Date: 2004/08/03

More Info


During pregnancy, maintaining proper nutrition and food safety is crucial for both maternal and fetal health. As you are currently 28 weeks pregnant and experiencing frequent stomach issues due to eating out, it’s understandable to have concerns about how this might affect your baby.

Firstly, let’s address the concern about bacterial infections. When a pregnant woman consumes contaminated food, there is a risk of foodborne illnesses, which can indeed pose a threat to fetal development. Certain bacteria, such as Listeria, Salmonella, and E. coli, can lead to severe complications, including miscarriage, premature labor, or infections in the newborn. However, the fetus is generally protected by the amniotic fluid and the placenta, which act as barriers to some extent. That said, if a pregnant woman becomes ill from food poisoning, it can still lead to complications that may indirectly affect the fetus, such as dehydration or severe illness requiring hospitalization.

To minimize the risk of foodborne illnesses, it is essential to practice safe food handling and preparation techniques. When eating out, choose reputable restaurants that follow strict hygiene practices. Avoid raw or undercooked foods, including sushi, undercooked meats, and unpasteurized dairy products, as these can harbor harmful bacteria. Opt for well-cooked meals and ensure that fruits and vegetables are washed thoroughly.

Regarding your question about taking medications like "正露丸" (which is a type of anti-diarrheal medication), it is crucial to consult your healthcare provider before taking any medication during pregnancy. While some medications may be safe, others can pose risks to the developing fetus. Your doctor can provide guidance on safe options for managing stomach issues and may recommend alternatives that are more suitable for pregnant women.

In addition to food safety, it’s important to focus on your overall nutrition during pregnancy. Since you mentioned that you are eating out frequently, try to incorporate more balanced meals that include a variety of food groups: lean proteins, whole grains, fruits, and vegetables. If you find it challenging to get enough greens, consider smoothies or soups that can help you consume more vegetables in a palatable way.

Lastly, staying hydrated is vital, especially if you are experiencing stomach issues. Drinking plenty of fluids can help prevent dehydration, which is a concern if you have diarrhea. Aim for water, herbal teas, or electrolyte solutions if needed.

In summary, while foodborne illnesses can pose risks during pregnancy, practicing safe eating habits and consulting with your healthcare provider about any medications can help mitigate these risks. Focus on a balanced diet, stay hydrated, and prioritize food safety to support both your health and your baby's development. If you continue to experience stomach issues, it’s essential to seek medical advice to ensure that both you and your baby remain healthy.

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