Why Is Gel Used During Ultrasound Scan?


Before conducting an ultrasound scan your doctor will apply a clear, water-based gel to your skin. This helps provide accurate images for several reasons.

Better Contact

Applying a gel to the skin during an ultrasound procedure allows the transducer to pass over the skin more easily so that it makes better contact with the body.

Sound Waves

During an ultrasound the transducer emits high-frequency sound waves to obtain images of the inside of the body. Using a gel during the procedure allows them to pass through with little interference.


Air bubbles contained in the gel can result in cloudy images. Only gels manufactured for medical imaging should be used for this process.


The gel should not contain anything, including sensitizers and fragrances, that might irritate the skin or cause a reaction.

Clear Image

Using the proper gel during an ultrasound procedure helps provide a clear image of the area of concern. This enables your doctor to form a more accurate diagnosis.

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