shape your baby

How Birth Choices Shape Your Baby’s Gut Health

Every mother wants her baby to have the best start in life, and gut health is a big part of that. But have you ever wondered about how your baby’s gut health begins to develop? Interestingly, the gut begins to develop during pregnancy, and continues to develop after delivery and for the first 2-3 years after birth. The good bacteria available during vaginal birth, helps to shape your baby’s current health and future well-being.1,2

What is Vaginal and C-section delivery?

The key difference between vaginal birth and cesarean section (C-section) is how the baby is delivered. Vaginal delivery is the natural process where the baby is born through the birth canal.3 In contrast, the C-section is a surgical procedure where the baby is delivered through an incision made in the mother’s abdomen and uterus and this procedure is used when vaginal birth is not possible or safe. 4,5

Pros and cons of vaginal and C-section delivery

Pros

C-section delivery3–5 Vaginal delivery3
  • Required for mother’s with medical indications or high-risk pregnancies
  • To determine the exact timing of birth
  • Convenient, allowing time for advance preparation
  • No pain experienced during birth
  • Suitable for mothers with good health
  • Quick postpartum recovery
  • Lower blood loss
  • Less postoperative pain
  • Immediate readiness for successful breastfeeding
  • No complications from surgery
  • Decreased hospital stay after childbirth
  • Baby receives good bacteria through vaginal delivery, enhancing initial immunity, resulting in better overall health
  • Lower cost
  • Early initiation of breastfeeding

Cons

C-section delivery5,3 Vaginal delivery3
  • Slow recovery and increased length of hospital stay
  • Delay in breastfeeding
  • Substantial blood loss and extended pain period
  • Possibility of complications in future pregnancies
  • Possibility of surgical complications/pain
  • Delayed exposure to beneficial bacteria, potentially affecting the baby’s immune health
  • Higher costs
  • Prolonged and painful labor
  • Unpredictable onset of labor and hence difficult to prepare in advance
  • Higher risk of pelvic floor injuries

Vaginal vs. C-section delivery and baby’s gut health

The way a baby is born—whether vaginally or via C-section—plays a key role in shaping their gut health, particularly during the first year of their life.6

Babies born via the vaginal route typically obtain good bacteria directly from the mother’s birth canal. These tiny microbes are essential for a healthy start in life, as they help to build a strong immune system.1,7,8

However, when babies are born via c-section, they miss out on the natural transfer of good bacteria from the mother’s birth canal. Instead, they are more likely to acquire microbes from the hospital environment and the mother’s skin. These microbes are very different from the vaginally born babies leading to low levels of good bacteria and potentially higher levels of harmful bacteria in the baby’s gut.1,7–9 As a result, this imbalance in gut microbial composition may increase the risk of compromised immunity in babies born via the C-section.10–12

Impact of C-section on a baby’s immunity

While C-section deliveries can be lifesaving for both mother and baby in certain situations. It can put the mother and babies at unnecessary risk of short- and long-term health problems if performed when there is no medical need.13

Studies show that babies born via C-section are at a higher risk of developing asthma, allergies, obesity, possibly type 1 and 2 diabetes, and inflammatory diseases, all of which have been linked to compromised gut microbiome.10–12,14–16

early phase baby

Simple ways to support your baby’s gut health and immunity

The early phase of life is important as your baby grows and develops rapidly. As a parent, there are several ways to nurture your baby’s gut health and immunity, including:13,17–20

  • Pay attention to your nutrition during pregnancy
  • Try to choose a vaginal birth when possible
  • Avoid C-section if not needed medically
  • Prioritize exclusive breastfeeding for the first 6 months, as it provides immune-boosting nutrients, good bacteria (probiotics), and food for those bacteria (prebiotics).
  • Maintaining a clean and safe environment

By staying informed and taking proactive measures, you can mitigate the potential risks linked to C-section births and give your baby a healthy start in life.

References

  1. Lai C, et al. Sci Rep. 2024;14:17452.
  2. Mungovan K, et al. In: 2016 Jan 1 (pp. 403-421). Academic Press.
  3. Desai NM, In: Treasure Island (FL): StatPearls Publishing; 2025 Jan.
  4. WHO 2018. Available at: https://iris.who.int/bitstream/handle/10665/275377/9789241550338-eng.pdf. Accessed on: 8 January 2025.
  5. Hofmeyr GJ, et al. Cochrane Database Syst Rev. 2008;2008(1):CD004662.
  6. Coscia A, et al. Life. 2021;11:148.
  7. Neu J, et al. Clin Perinatol. 2011;38(2):321–331.
  8. Zhang C, et al. Front Microbiol. 2021;12:724449.
  9. Yang B, et al. Int J Mol Sci. 2019;20:3306.
  10. Ríos-Covian D, et al. Microorganisms. 2021;9:2122.
  11. Słabuszewska-Jóźwiak A, et al. Int J Environ Res Public Health. 2020;17(21):8031.
  12. Yang X, et al. Front Pediatr. 2023;10:1044954.
  13. WHO. Available at: https://www.who.int/news/item/16-06-2021-caesarean-section-rates-continue-to-rise-amid-growing-inequalities-in-access. Accessed on: 8 January 2025.
  14. Zhou Y, et al. Int J Environ Res Public Health. 2020;17:2003.
  15. Black M, et al. JAMA. 2015;314(21):2271–2279.
  16. Papadopoulou SK, et al. Medicina (Kaunas). 2023;59(4):664.
  17. Catassi G, et al. Nutrients. 2024;16(3):400.
  18. Moossavi S, et al. Front Pediatr. 2018;6:197.
  19. Gibson GR, et al. Nat Rev Gastroenterol Hepatol. 2017;14(8):491–502.
  20. .

  21. Laursen MF. Annals Nutr Metab. 2021;1:1–14.