Understanding USG Fetal Well Scan: Purpose, Types

Dr. Aakaar Kapoor

MBBS, MD, Senior Consultant Radiologist

Lifestyle Diseases 07 Feb 2026

Overview

USG is the short form of ultrasound or Ultrasonography which uses sound waves for the detection of fetal growth and its well being. USG uses sound waves for the detection of fetal abnormalities and the growth of fetus. USG is preferred test during pregnancy because it is safe and does not involve any exposure of radiations during the procedure. Fetal well USG scans are those usually done after 26 weeks of pregnancy to keep a track of fetal growth and to look for any anomalies during the growth. Doctors usually suggest these scans regularly during the later stages of pregnancy to avoid any delay for the treatment or diagnosis of abnormalities in growing fetus.

What is USG Fetal Well

USG fetal well scans are usually considered after 26 weeks of pregnancy or in third trimester of pregnancy. This scan is done to look for continues check for the growth and development of fetus. USG uses sound waves for the detection of abnormalities in the fetal growth. Sound waves are safe for pregnant women and do not expose the mother or fetus to radiations which are harmful for both. Timely and frequent USG during later stages of pregnancy helps to keep the track of both mother and fetal health.

Procedure for USG Fetal Well

The procedure for USG fetal well is similar to that of other USG scans done during the early stages of pregnancy. USG machine is attached with a transducer which emits sound waves and pictures are obtained on monitor attached with USG machine. Doctor apply gel on the belly of patient for smooth movement of transducer and also gel helps to avoid any sound deflection. Sound waves from transducer emit and strike with fetus, which in turn helps to create the pictures of fetus on monitor. These pictures are captured and studied for the growth and development of the fetus. After the procedure, patient is provided with tissue to wipe the gel on belly. The procedure is short and takes around 5 to 10 minutes.

Purpose of USG Fetal Well Being

Various purpose of USG fetal well being and some are listed below:

Used to look for growth and development of fetus
Used to look for abnormalities in fetus
Used to monitor fetal health
Used to evaluate amniotic fluid and its volume
Helps to evaluate placental health
Helps to check the position of baby
Can detect imbalances in fluid
Helps to evaluate fetal size
Helps to evaluate blood flow in umbilical cord or placenta etc

Different Types of USG Performed During Pregnancy

There are various types of USG procedures performed during the different stages of pregnancy and these USG procedures include:

Transvaginal Ultrasound (TVS)
Standard (2D) Ultrasound
3D Ultrasound
4D Ultrasound (Dynamic 3D Ultrasound)
Doppler Ultrasound
Nuchal Translucency Scan (NT Scan)
Anatomy Scan (Level 2 Ultrasound or Mid-Pregnancy Scan)
Fetal Echocardiography
Biophysical Profile (BPP)
Growth Scan

Book online USG fetal well in Delhi at affordable price.

Conclusion

USG fetal well in one of the ultrasound tests used to look for fetal growth, development and evaluate any abnormalities of fetus. USG is safe during pregnancy because it uses sound waves for the detection of abnormalities and no exposure of radiations occurs during the process. USG fetal well is used to look for congenital abnormalities, growth defects, health of fetus, evaluate weight of fetus, position of fetus etc. The procedure uses transducer attached with USG machine, transducer emits radiations which strikes with fetus and helps to create pictures on monitor. The cost of USG fetal well can range from INR 2,000 to INR 4,000 in Delhi NCR. Patient can book the test in advance to avoid any rush for the same.

Frequently Asked Questions (FAQ’s)

What is USG fetal well?

USG fetal well is a type of ultrasound done during pregnancy to monitor growth, development and any related abnormalities of fetus.

Can USG fetal well detect congenital abnormality?

Yes, USG fetal well can detect congenital abnormality.

What are the uses of USG fetal well?

USG fetal well is used to look for the growth of fetus, development of fetus, any abnormality related to fetus, amount of fluid present, position of fetus, evaluate weight and size of fetus etc.