Having a prominent or enlarged masseter muscle can make men and women feel that their face shape is too wide or square. This can not only make a person feel less attractive, but it can also contribute to a heavier overall look, even when the patient is not overweight. Furthermore, having one masseter that is larger than the other can result in a noticeable asymmetry of the face.
Regardless of why the masseter becomes enlarged, BOTOX injection is likely to be an effective solution for restoring a more symmetric and appealing face shape.