20 week anomaly/fetal assessment scan

The 20-week anomaly scan, also called the mid-pregnancy ultrasound, is done to check the baby’s development and look for any potential health issues. It’s not just about finding out the gender! Here’s why it’s important:

1. Checking for Physical Abnormalities

The scan helps detect structural issues in major organs, including:

  • Brain & Skull – Checking for abnormalities like spina bifida or brain development issues.
  • Heart – Looking at heart chambers and blood flow to detect congenital heart defects.
  • Spine – Ensuring it’s properly aligned and developed.
  • Lips & Face – Checking for cleft lip (though cleft palate is harder to see).
  • Abdomen & Kidneys – Making sure the stomach, intestines, and kidneys are developing correctly.
  • Limbs – Counting fingers, toes, and ensuring arms and legs are growing properly.

2. Checking Amniotic Fluid & Placenta

  • The scan ensures there’s the right amount of amniotic fluid.
  • It checks the placenta’s position to rule out placenta previa, which can cause complications in later pregnancy.

3. Monitoring Growth & Measurements

  • The sonographer measures the baby's head, abdomen, and limbs to check if they’re growing as expected for 20 weeks.
  • This can help detect growth restrictions or potential concerns.

4. Checking the Umbilical Cord & Blood Flow

  • Ensures the baby is getting enough nutrients and oxygen through the umbilical cord.

5. Identifying Potential Genetic Conditions

  • While the scan doesn’t diagnose genetic disorders, it can reveal "soft markers" that may indicate conditions like Down syndrome, which may lead to further testing.

6. Finding Out the Gender (Optional)

  • If the baby is in a good position and the parents want to know, the technician can usually determine the gender at this scan.