The question “Trong bụng mẹ, em bé có thở không?” translates to English as: **Does a baby breathe in the womb?**

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“Does a fetus breathe inside the womb?”, “How does a fetus breathe?”… are questions that most pregnant mothers are concerned about and ask. The following answer may surprise many because a fetus in the womb does not breathe through its mouth and nose like babies who have been born. When a baby is born, that’s when they start breathing the outside air.

Actually, the lungs of a fetus in the womb do not function like the lungs of a born baby. The fetal lungs are filled with amniotic fluid, which helps the lungs mature. In the womb, the fetus benefits from the mother’s breath, including oxygen and essential nutrients. This shows that the fetus lives thanks to the breath, oxygen, and nutrients transmitted from the mother.
The umbilical cord and placenta, connected from the mother to the baby, act like the fetus’s lungs. The mother’s circulatory system provides blood and nutrients, as well as removes waste products for both the mother and the fetus. During this time, the baby’s circulatory system is still developing and maturing as the due date approaches.

Surrogate Breathing
The process of exchanging nutrients, blood, and oxygen from the mother to the fetus occurs through the umbilical cord and placenta connected from the mother to the fetus. The placenta is connected from the uterus and umbilical cord. Therefore, during the 9 months of pregnancy, the mother’s breathing process also affects the baby. The fetus’s breathing process takes place as follows: the mother inhales, and through the circulatory system, the air goes into the placenta and umbilical cord to the fetus. At the same time, the fetus’s carbon dioxide goes through the placenta and umbilical cord to the mother’s circulatory system and is expelled when the mother exhales.

Practice Breathing
Around the 9th week of pregnancy, the mother will feel slight movements of the baby as if it is breathing. Actually, this is because the baby is practicing breathing.
Near the end of pregnancy, the mother will feel this phenomenon more clearly. During the practice breathing process, amniotic fluid will enter and exit the baby’s lungs.

Between weeks 24-28 of pregnancy, the mother’s body undergoes significant changes. Amniotic fluid produces a substance called surfactant – this surfactant coats the lungs, causing the air sacs to open. When the fetus cannot receive enough of this substance, the baby’s lungs may collapse at birth.

Official Breathing
At birth, the baby’s circulatory system is complete, and the baby will officially breathe with its own lungs.

Most newborns often breathe very strongly and quickly because of the sudden change in the circulatory system without any warning signs. When the umbilical cord is cut, the fetus officially starts using its lungs. At this point, the baby is breathing on its own, and the inhalation and exhalation process drains the amniotic fluid from the lungs. Immediately afterward, the two lungs will inflate and contract on their own, bringing oxygen into the blood and separating carbon dioxide from the blood, expelling it into the air through the baby’s airways.

Mothers can refer to some maternity milk products that provide adequate nutrients to the baby without affecting the mother, helping to maintain a healthy pregnancy:

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