Can Ultherapy cause fat loss when getting it done on the cheek area?

Unfortunately,
the answer to your question is without a doubt yes, Ultherapy does cause fat
loss. The given depth of penetration for
4.5mm is below the skin; and the tissue
that is directly below the skin is fat.
This is where the fat layer in the face lives. Any plastic surgeon who has ever done a face
lift will tell you that looking at Before/After pictures of Ulthera patients, patients
will show a loss of volume, due to treatment related fat loss.

I have not heard from any of my colleagues that they have seen fat reduction from Ultherapy.  I have been doing Ultherapy for several years with good patient satisfaction and am not aware of one case of fat loss.  I actually tried to reduce the submental fat of the neck intentionally, early on when beginning the procedure and did not see any fat reduction. Ultherapy is FDA cleared for tissue tightening.This is not to say that anyone could guarantee it wouldn't happen to you, but it's not a side effect we're aware of to discuss with our patients preoperatively.

Microfocused ultrasound should not cause fat loss if used appropriately especially if used properly.  Best, Dr. Emer.