A member asked:

I have a ultrasound rf cavition machine for slimming, does this produce a hiqh pitch sound when it touches my skin?

A doctor has provided 1 answer
Dr. Bruce J. Stringer answered

Specializes in Radiology

Maybe: Ultrasound, by definition means sound waves over the frequency of human hearing. That being said, a small proportion of the energy going into ultrasound production causes the creation of sounds of lower frequencies as harmonics. So there might be some audible sound heard during operation.

Answered 3/12/2013

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