Early Anomaly Scan

An Early Anomaly Scan is important to a pregnant woman's healthcare. It involves using ultrasound to assess the baby's development and check for structural abnormalities, such as heart defects or spina bifida. This scan is usually conducted between 18 and 21 weeks of pregnancy, giving crucial insight into the unborn baby's health. Early anomaly scans offer parents peace of mind, allowing them to prepare for their child's arrival with confidence in their well-being.

What is an Early Anomaly Scan?

An early anomaly scan is a detailed ultrasound scan of the fetus, usually performed between weeks 18 and 20 of pregnancy. It helps to check for major physical abnormalities in the baby, such as spina bifida or anencephaly, as well as other structural issues. During the scan, the sonographer will look at the baby's head and neck, heart, stomach area, and limbs to ensure they are developing correctly. The scan can also assess the amount of amniotic fluid around the baby, measure the size of your baby, and check whether it is growing normally.

What are the different types of Early Anomaly Scans?

There are various types of early anomaly scans. The main type is a nuchal scan, which assesses the risk of Down syndrome and other genetic conditions. This is usually performed between 11 and 14 weeks of pregnancy. A morphological scan examines the baby's anatomy and evaluates growth and development. This takes place between 18 and 21 weeks. An NT scan looks at the fluid thickness at the back of the baby's neck and assesses any risk associated with chromosomal abnormalities, such as Edward's syndrome or Patau syndrome. Finally, a targeted ultrasound scan examines specific parts of the baby's body to gain more detailed information about potential health problems.

When should one see a doctor for an Early Anomaly Scan?

A person should see a doctor for an Early Anomaly Scan between 11 and 13 weeks plus 6 days of pregnancy. The scan is usually part of routine prenatal care, but it may be recommended earlier if there are concerns about the baby's development. It will help diagnose any birth defects or physical abnormalities in the foetus and confirm the baby's gestational age. The scan takes around 30 minutes and gives a detailed view of the baby's organs and structures.

How should a patient prepare for the Early Anomaly Scan?

One should prepare for an early anomaly scan by drinking water about 30 minutes before the appointment. It is important to avoid using the restroom before the scan and to wear loose clothing that can be easily removed from the waist down. Additionally, it is helpful to have a full bladder, which will help make the baby more visible during the scan.


An early anomaly scan is a simple and safe procedure using ultrasound to check the baby's growth and detect potential birth defects. This screening test can help determine the best course of treatment for a successful pregnancy. An early anomaly scan is an invaluable tool for detecting potential problems in foetal health and allowing expectant parents to make informed decisions for their unborn child. Early detection and timely intervention are essential for ensuring the best possible outcome for both mother and baby.

Request an appointment at Apollo Cradle, Hyderabad - Kondapur. Call 1860-500-1066 to book an appointment.

1. What is the purpose of an Early Anomaly Scan?

An Early Anomaly Scan is an ultrasound performed in the second trimester of pregnancy to assess fetal health and detect structural anomalies.

2. What types of anomalies can be detected during an Early Anomaly Scan?

During an Early Anomaly Scan, potential structural defects such as cardiac abnormalities, neural tube defects, skeletal dysplasias, abdominal wall defects, and renal malformations can be identified.

3. At what stage should a woman have her Early Anomaly Scan?

The most common time frame for an Early Anomaly Scan is between 18 and 22 weeks of gestation.

4. How long does it take to perform an Early Anomaly Scan?

The scan typically takes around 10–15 minutes to complete.

5. Are there any risks associated with having an Early Anomaly Scan?

No known serious risks are associated with having an Early Anomaly Scan. The small amount of ultrasound used during the scan is unlikely to cause any harm.

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