Ultrasound gel is a type of gel that is used during ultrasound examinations. It is applied to the skin to help transmit sound waves and improve the quality of the ultrasound image. The gel acts as a medium between the ultrasound probe and the skin, allowing the sound waves to travel more efficiently.

As for the difference between blue and clear ultrasound gel, it primarily comes down to personal preference and the specific requirements of the healthcare facility. Both blue and clear ultrasound gels serve the same purpose and have similar properties. However, some healthcare professionals may prefer one color over the other for better visibility or ease of use.

Ultimately, the choice between blue and clear ultrasound gel depends on individual preferences and the specific needs of the healthcare setting.