Ultrasound scans

An ultrasound scan, sometimes called a sonogram, is a procedure that uses high-frequency sound waves to create an image of part of the inside of the body. An ultrasound scan can be used to monitor an unborn baby, diagnose a condition, or guide a surgeon during certain procedures.

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How ultrasound scans work

Preparing for an ultrasound scan

What happens during an ultrasound scan?

External ultrasound scan

Internal or transvaginal ultrasound scan

Endoscopic ultrasound scan

After an ultrasound scan

Are there any risks or side effects?


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