Medically reviewed and authored by Larry M. Wolford, DMD — Board-Certified Oral & Maxillofacial Surgeon, Dallas, TX. Last reviewed: June 2026.

No face is perfectly symmetrical, and small differences between the two sides are completely normal. But for some people, the asymmetry is significant — a jaw that shifts noticeably to one side, a chin that points off-center, or one side of the face that appears longer or fuller than the other. When facial asymmetry is pronounced, it is often a sign of an underlying difference in how the jaws or facial bones developed or changed over time, and it may affect not only appearance but also the bite, chewing, and jaw joint health.

Recognizing Significant Asymmetry

Meaningful facial asymmetry tends to show up in consistent ways: the chin or lower jaw deviates to one side, the midline of the lower teeth does not match the upper teeth, one side of the bite contacts differently than the other, or the lips and smile appear uneven. Some people notice these changes gradually over months or years, which can be an important clue that an active process is at work rather than a fixed, lifelong feature.

What Causes Facial Asymmetry

Asymmetry of the jaws and face has several possible origins:

• Condylar hyperplasia, in which one jaw joint grows more than the other, progressively lengthening that side of the lower jaw and shifting the chin toward the opposite side
• Condylar resorption, in which a jaw joint breaks down, often shortening that side and causing the bite and chin to shift
• Hemifacial microsomia and other congenital conditions, where one side of the face develops differently from birth
• Trauma, such as a jaw fracture that healed in an altered position
• Tumors or cysts affecting the jawbones
• Untreated jaw joint disease that alters jaw position over time

Because several of these involve ongoing changes, identifying whether the asymmetry is active and progressing — or stable — is a key part of planning treatment.

Why an Accurate Diagnosis Comes First

Two patients can look similar in the mirror yet need very different treatment. A jaw that is asymmetric because one joint is overgrowing requires a different plan than a jaw that has shifted because a joint is breaking down. Evaluation typically includes three-dimensional cone-beam CT imaging to assess the bones and joints, MRI when joint pathology is suspected, and sometimes specialized scans to determine whether a joint is still actively changing. Getting this right is what allows treatment to correct the asymmetry and keep it from returning.

How Surgery Corrects Asymmetry

When the cause lies in the jaws and joints, corrective jaw (orthognathic) surgery can restore balance by repositioning the upper jaw, lower jaw, and chin into a symmetrical, properly aligned relationship. Modern three-dimensional planning allows the surgeon to map these movements precisely before the operation. When a jaw joint is the source — overgrowing, degenerating, or diseased — that joint may need to be addressed directly, sometimes with reconstruction or total joint replacement, so the correction is stable. In many cases, orthodontic treatment before and after surgery helps the teeth fit together correctly once the jaws are realigned.

Benefits Beyond Appearance

Correcting significant facial asymmetry does more than improve symmetry and confidence. Realigning the jaws can normalize the bite, distribute chewing forces evenly, relieve strain on overloaded jaw joints and muscles, and in some cases improve breathing. Because the underlying cause is addressed, the goal is a result that is both balanced and lasting.

When to Seek an Evaluation

It is worth seeking a specialist evaluation if your facial asymmetry is noticeable or worsening, if your bite is shifting, or if asymmetry is accompanied by jaw pain or joint symptoms. An accurate diagnosis is the foundation of an effective plan.

To learn more or arrange a consultation with Dr. Larry M. Wolford in Dallas, Texas, call (214) 828-9115.

Educational disclaimer: This article is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider regarding your specific condition.