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Facial Plastic Surgery & Cosmetic Procedures
Closeup of a surgeon performing a rhinoplasty procedure

Masseter Muscle Reduction

Located along the lower jawline, the masseter muscle is one of the primary muscles used for chewing. A large masseter can contribute to a wider, square-shaped jaw – a facial feature often associated with masculinity.

For transgender women, procedures to reduce the size of this muscle can help create a narrower, more feminine jawline that better aligns with their gender identity. Masseter muscle reduction is often done in conjunction with other facial feminization procedures such as forehead contouring or feminization rhinoplasty to enhance balance between the upper and lower face.


Make an Appointment

To schedule a consultation with a UH facial plastic surgeon, call 216-844-3223.

Find a UH Facial Plastic Surgeon

Getting Started

All facial plastic surgery procedures are highly customized based on the person’s unique anatomy and expectations. Therefore, the first step is to schedule time with one of our plastic surgeons for an in-depth consultation. At this pre-planning appointment, the doctor will:

  • Assess the jawline, which may include imaging scans to evaluate the muscle and jawbone structure.
  • Use imaging software to visualize potential outcomes.
  • Discuss additional, complementary procedures such as forehead contouring if recommended for facial balance.
  • Explain how the procedure will be done and what to expect during the recovery period.

Procedures to Reduce the Masseter Muscle

There are two primary approaches to masseter muscle reduction – nonsurgical and surgical. The choice depends on the patient’s goals and expectations, the size and shape of the masseter muscle and overall health.

Nonsurgical Reduction

A small amount of botulinum toxin (Botox) is injected directly into the masseter muscle. The toxin temporarily weakens the muscle by blocking nerve signals, causing it to relax and shrink over time. Peak effects are typically seen 1 – 2 months post injection and results last from 3 – 6 months. Repeat treatments are needed to maintain the effect.

The procedure only takes 10 – 15 minutes and there is no downtime. This approach is not suitable for those with very thick masseter muscles and may not be appropriate for people with certain neuromuscular disorders.

Surgical Reduction

Performed under general anesthesia, the surgeon makes small incisions inside the mouth through which a portion of the muscle is excised and removed. In some cases, the underlying jawbone may be contoured for further refinement.

Full recovery can take several months with 1 – 2 weeks of downtime. Swelling and discomfort are common for the first week – a soft diet and limited jaw movement may be recommended. As with any surgical procedure there are some risks, including infection, nerve damage or changes in bite alignment. It is important to carefully follow postop instructions for wound care, diet and activity restrictions for optimal results and faster recovery.

Make an Appointment

Schedule a consultation with a UH facial plastic surgeon.

216-844-3223