A member asked:

What causes enlargement of muscles below the ears?

A doctor has provided 1 answer

Minor mystery: Some people have very large masseters, famously the late president nixon. I suspect this is genetic. Some folks attribute some cases to grinding the teeth or chewing gum. Masseter hypertrophy is treated nowadays with Botox is the person wishes. Photoguy may love it or hate it. It's his choice, and the wife's.

Answered 6/24/2014

4.3k views

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