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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