Oligohydramnios - Decreased Amniotic Fluid

Pregnancy

Obie Editorial Team

Oligohydramnios is a condition where you experience decreased amniotic fluid during pregnancy. Understanding this condition means you can take empowering steps towards managing it effectively. Several methods are at your disposal to evaluate amniotic fluid levels, a crucial part of keeping your pregnancy healthy.

Amniotic fluid, primarily composed of your baby's urine, gradually increases until you reach 36 weeks of pregnancy, after which a natural decrease occurs. This fluid plays a protective role, safeguarding your baby from injury and aiding their growth and movement. Monitoring its levels becomes integral to prenatal care.

Healthcare professionals typically measure amniotic fluid through an ultrasound. They look at the largest pocket of fluid or calculate the Amniotic Fluid Index (AFI) by adding the measurements from four distinct quadrants. Let's focus on the numbers - an AFI less than 5 cm towards the latter part of pregnancy is considered low, while anything above 25 cm indicates excess.

Accuracy matters, and recent findings show that measuring a single fluid pocket of at least 2 cm is more reliable than using the AFI. This metric considers the possibility of false positives where outcomes could initially appear concerning.

If you're facing decreased amniotic fluid or oligohydramnios, it could be due to several reasons. These include:

  • Rupture of the fetal membranes, which you may know as your water breaking prematurely.
  • Placental insufficiency, often linked to high blood pressure or post-term pregnancies, can impede the placenta's ability to supply your baby with essential nutrients and oxygen.
  • Blockages or malformations affecting your baby’s urinary tract, such as renal agenesis (where kidneys don't develop), polycystic kidneys, or other urinary obstructions, can impact their urine output reducing amniotic fluid.

Understanding these potential causes equips you and your healthcare provider to tailor your prenatal care effectively. Stay informed and proactive – your journey through pregnancy can be one of strength, resilience, and growth. Engage with your healthcare team, attend regular check-ups, and monitor your and your baby's wellbeing to ensure the nurturing environment your little one needs.