Early Anomaly Scan

Early Anomaly Scan is an important part of prenatal care. It is a scan that takes place between 18 and 20 weeks of pregnancy to check the development of the baby. The scan can assess foetal anatomy, check for any abnormalities or genetic disorders and provide reassurance to the expectant parents. With modern technology, this scan can detect over 90% of major birth defects in the unborn child. It is essential for expecting mothers to have an Early Anomaly Scan to ensure the best possible outcome for their pregnancy.

What is an Early Anomaly Scan?

An early anomaly scan, also known as a mid-pregnancy ultrasound scan, is an ultrasound examination that takes place between 18 and 21 weeks of pregnancy. This scan is used to check the baby’s growth and development, including its heartbeat, position in the uterus, and size and length of limbs. The sonographer will measure the size of the baby and look at all of its organs in detail. The scan should take around 20 minutes, during which time images are taken of the baby for further examination. It can also be used to detect any physical abnormalities or birth defects that may exist in the foetus. The scan can detect a wide range of conditions, but it won't be able to identify everything. It's important to remember that this scan isn't diagnostic; it just gives a picture of how the baby is developing.

Who qualifies for an Early Anomaly Scan?

Anyone pregnant with a single embryo can qualify for an Early Anomaly Scan between 18-21 weeks of pregnancy. The scan checks for any physical abnormalities in the baby and is designed to pick up any major health problem as early as possible. It may also be offered to mums carrying twins, depending on the gestational age. The scan is usually part of routine antenatal care.

How should a patient prepare for an Early Anomaly Scan?

To prepare for an Early Anomaly Scan, it is best to drink plenty of fluids before the appointment and wear loose-fitting clothing that can be easily removed. It is also recommended to empty the bladder before the scan. If a woman has had any bleeding during her pregnancy, she should inform her doctor or midwife before the scan. Additionally, they should inform their doctor if they have any allergies or health conditions that may require additional precautions.

When would a doctor suggest undergoing an Early Anomaly Scan?

Patients may be advised to undergo an Early anomaly scan between the 11th and 13th week of pregnancy. This scan is commonly performed to assess a baby’s development, check for any birth defects or chromosomal abnormalities, and to confirm the baby’s gestational age.

Doctors may also use it to examine the placenta, umbilical cord, and amniotic fluid. Because this is an important diagnostic tool in detecting potential issues early on, medical practitioners often recommend an Early anomaly scan to give both parents peace of mind.


An early anomaly scan is an important procedure for expecting parents to get a better understanding of their baby's development in the womb. It uses advanced ultrasound technology to detect any potential abnormalities and assures that the pregnancy is progressing as expected. The scan can provide peace of mind for expecting parents and help them prepare for the arrival of their child. Early anomaly scans are a safe way to gain insight into the health and well-being of your unborn baby, helping you feel more secure throughout your pregnancy journey.

Request an appointment at Apollo Cradle, Bengaluru - Koramangala. Call 1860-500-1066 to book an appointment.

1. What specific abnormalities can be detected during an early anomaly scan?

An early anomaly scan can detect conditions such as Down syndrome, spina bifida, cleft lip or palate, and any other physical deformities that may affect the baby's development.

2. How accurate is an early anomaly scan?

Generally, an early anomaly scan has a high accuracy rate of detecting major structural abnormalities in the foetus. However, some less severe abnormalities may not be detectable until later stages in the pregnancy.

3. Are there any risks associated with having an early anomaly scan?

Although rare, there have been reports of complications associated with having an early anomaly scan. These include incorrect diagnosis, false positives, and potential side effects from exposure to ultrasound waves.

4. Are there any alternatives to the traditional early anomaly scan?

Non-invasive prenatal screening (NIPS) is a newer testing option available for pregnant women which can detect some foetal chromosomal abnormalities through analysis of cell-free DNA found in maternal blood.

5. What if my doctor finds something wrong during my early anomaly scan?

If your doctor finds something abnormal during your early anomaly scan, they may recommend further tests or follow-up ultrasounds to confirm the diagnosis and monitor foetal development.

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