Some have agonized over doctors' recommendations for amniocentesis, others have worried anxiously about "low or high amniotic fluid," and still others nearly faced stillbirth because they couldn't distinguish between "urinary leakage" and "water breaking."
Amniotic fluid is vital for the baby's survival, but expectant mothers need not be overly anxious about ultrasound reports mentioning "low" or "high" amniotic fluid levels.
Expert: Four Ways for Pregnant Women to Quickly Distinguish Between Urinary Incontinence and Water Breaking
Medical Guidance/Chen Min, Director of the Fetal Medicine Center at the Third Affiliated Hospital of Guangzhou Medical University
For expectant mothers carrying new life, amniotic fluid is a term frequently encountered during prenatal examinations.Some agonize over a doctor's recommendation for amniocentesis, others worry about "low or high amniotic fluid" on mid-to-late pregnancy ultrasounds, and some nearly faced stillbirth because they couldn't tell the difference between "urine leakage" and "water breaking"...
Many expectant mothers have only a superficial understanding of amniotic fluid, while others overinterpret its significance.What exactly is amniotic fluid? What role does it play during pregnancy? What do changes in its volume signify? How should one respond? With these questions in mind, our reporter interviewed relevant experts.
Amniotic fluid is actually the baby's urine
When discussing amniotic fluid, many "artsy types" bestow it with poetic names like "water of life" or "source of love." However, Chen Min, Director of the Fetal Medicine Center at Guangzhou Medical University Third Affiliated Hospital, explains that during mid-pregnancy, the primary source of amniotic fluid is the fetus's urine. In later stages, it also includes fluid secreted by the fetal lungs.By late pregnancy, the fetus can produce over 1,000 milliliters of urine daily. Amniotic fluid primarily contains vernix caseosa, fetal skin cells, hair, white blood cells, and other substances—hardly romantic at all.
Yet no one can deny amniotic fluid's vital role for the developing baby. "Its primary function is protection—both for the fetus and the mother," Chen Min explains. The fluid allows the fetus to move freely without deformation from prolonged uterine pressure, crucial for musculoskeletal development, while also cushioning against external impacts.Normal swallowing of amniotic fluid is vital for fetal gastrointestinal development. While this process involves ingesting their own urine—sometimes mixed with meconium—mothers shouldn't worry excessively. Fetal urine and meconium are relatively clean, and amniotic fluid possesses antibacterial properties.
During labor, amniotic fluid prevents fetal distress caused by intense uterine contractions. For the mother, this fluid acts as a cushion, minimizing discomfort from fetal movements. Additionally, amniotic fluid flowing out during delivery cleanses the birth canal, reducing infection risks.