How to Correct Masseter Hypertrophy

Hypertrophy of the masseter muscle can negatively affect facial appearance. Many individuals are not particularly familiar with the masseter muscle; however, it is the firm, prominent muscle you feel when you puff out your cheeks and press on them with both hands. Masseter hypertrophy may result not only from genetic factors but also from poor daily habits—such as frequently consuming hard or tough foods. Mild cases may be alleviated through massage, while more severe cases may require surgical intervention.

How to Correct Masseter Hypertrophy

The most common treatment for masseter hypertrophy is botulinum toxin injection. Type A botulinum toxin is both safe and effective. In China, approved products include the imported Botox® and the domestically produced Hengli®. Both demonstrate significant efficacy in reducing masseter hypertrophy. The effects of each botulinum toxin injection typically last approximately six months. With regular treatment—usually three to four sessions—the masseter muscle remains atrophied for one to two years, and sometimes even longer.

Patients with masseter hypertrophy must avoid self-medicating or using drugs indiscriminately in daily life, as inappropriate medication use may delay proper treatment. It is essential to seek evaluation at a reputable medical institution, undergo thorough examinations, follow physicians’ recommendations closely, and actively cooperate with prescribed therapies.

Additional Information: Causes of Masseter Hypertrophy

The masseter is one of the primary muscles involved in mastication. Its main functions include elevating and protracting the mandible during contraction. Most cases of masseter hypertrophy stem from dietary habits—for example, regularly consuming cartilage, beef, or other tough, difficult-to-chew foods, or habitually chewing gum over extended periods—all of which repeatedly exercise the masseter muscle and lead to its enlargement.

A subset of cases results from familial or genetic predisposition. The primary consequence of pronounced masseter hypertrophy is aesthetic impairment. When hypertrophy is severe, conservative approaches such as physical therapy or pharmacotherapy often prove ineffective. Surgical reduction—removing part of the masseter muscle while preserving a portion of it, along with the temporalis, medial pterygoid, and lateral pterygoid muscles—is an option to maintain normal masticatory function.

The above outlines available correction strategies for masseter hypertrophy. We hope this information is helpful to you.