Skip to main content

Masseter Muscle Hypertrophy

Meaning

Masseter Muscle Hypertrophy refers to the measurable enlargement or increase in the size of the masseter muscle, which is one of the primary muscles responsible for chewing and jaw movement. This condition can result from excessive mechanical loading, such as chronic clenching or grinding (bruxism), or be influenced by anabolic hormonal stimulation. Clinically, hypertrophy contributes significantly to the lateral fullness and angularity of the lower face, impacting the overall jawline definition and facial aesthetic. It is a key factor in determining the width of the mandibular angle.