If you're expecting a baby or need a safe medical imaging test, you might be wondering: what is an ultrasound scan? Ultrasound scans are one of the most widely used and trusted medical tools in healthcare, especially during pregnancy. They provide a safe, painless, and effective way to see what's happening inside your body — without the use of radiation.

At our Berkshire clinic, we specialise in pregnancy ultrasound scans, offering everything from early reassurance scans to detailed 4D baby scans, so parents can connect with their baby before birth. Let's take a closer look at what an ultrasound scan is, how it works, and why it's so important.

Understanding an Ultrasound Scan

An ultrasound scan, sometimes called a sonogram, is a medical procedure that uses high-frequency sound waves to create images of the inside of the body. These sound waves are completely safe and cannot be heard by the human ear. When the sound waves bounce off tissues, organs, or fluids, a computer turns them into real-time images that can be seen on a monitor.

Unlike X-rays or CT scans, ultrasounds do not use ionising radiation, making them ideal for monitoring pregnancy and other sensitive conditions.

Why Ultrasound Scans Are Important During Pregnancy

One of the most common reasons people hear about ultrasounds is in relation to pregnancy. From the moment you find out you're expecting, an ultrasound can be used to:

  • Confirm your pregnancy and check how far along you are

  • Monitor your baby's growth and development

  • Check your baby's heartbeat

  • Identify the position of the baby and placenta

  • Detect multiple pregnancies (twins, triplets, etc.)

  • Identify any potential concerns early

At our Berkshire clinic, we offer a variety of pregnancy scans — from early pregnancy scans at 6 weeks to detailed 4D baby scans later in pregnancy — so you can see your little one in stunning detail.

How an Ultrasound Scan Works

During a typical ultrasound, a trained sonographer applies a special gel to the skin. This gel helps transmit the sound waves more effectively. Then, a small handheld device called a transducer is moved over the area being scanned.

The transducer sends sound waves into the body, which bounce back to create a clear image. In pregnancy scans, these images can show your baby's movements, facial expressions, and even little yawns or stretches if you opt for a 4D scan.

Types of Ultrasound Scans

While ultrasounds are used for many medical purposes, in pregnancy, there are a few main types:

  1. Early Pregnancy Scan (6–12 weeks) – Confirms pregnancy, estimates due date, and checks the baby's heartbeat.

  2. Dating Scan (Around 12 weeks) – Measures the baby to estimate gestational age and expected due date.

  3. Anomaly Scan (Around 20 weeks) – A detailed look at the baby's organs, bones, and overall development.

  4. Growth Scan (After 28 weeks) – Checks the baby's size, position, and wellbeing.

  5. 4D Baby Scan – Shows live moving images of the baby in the womb, often with incredible detail.

 

Benefits of an Ultrasound Scan

  • Completely Safe – No radiation, safe for both mother and baby.

  • Painless and Comfortable – The scan is non-invasive and easy to perform.

  • Instant Results – Images appear on the screen right away.

  • Reassurance – Especially in early pregnancy, an ultrasound can provide peace of mind.

  • Bonding Opportunity – Seeing your baby for the first time can be an unforgettable moment for parents.

Ultrasound Scans at Our Berkshire Clinic

At our Berkshire pregnancy scan clinic, we combine state-of-the-art ultrasound technology with a warm, welcoming environment. Whether you are having your very first early scan or want to see your baby in beautiful 4D, we are here to make your experience special.

Our sonographers are fully qualified and experienced, ensuring both accuracy and care. You'll receive printed images and, in some cases, video clips of your scan to share with friends and family.

Final Thoughts

So, what is an ultrasound scan? In simple terms, it's a safe and effective way to see inside the body using sound waves — and during pregnancy, it's a magical opportunity to meet your baby before they're born.

If you're in Berkshire and would like to book a pregnancy ultrasound scan, we're here to help you every step of the way. From reassurance scans to breathtaking 4D images, your baby's journey starts here.