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Abnormality Of Levator Labii Superioris C4073278

Published: July 22, 2026Updated: August 25, 2026

An abnormality affecting the muscle that elevates the upper lip during facial expressions. This can lead to mild asymmetry of the upper lip. Management is usually conservative, with cosmetic options considered if functional issues arise.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

ICD-10
M79.9
ICD-11
FA00.0
Body system
musculoskeletal
Severity
mild
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Joint pain or stiffness

(musculoskeletal)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Limited upper lip elevation when smiling

(musculoskeletal)

Gummy smile appearance due to insufficient lip raise

(musculoskeletal)

Asymmetric exposure of maxillary teeth

(musculoskeletal)

Difficulty with certain consonants requiring lip closure

(musculoskeletal)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Dietary counseling and physical activity plan

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Facial Muscle Rehabilitation

Targeted exercises and massage therapy to strengthen and improve coordination of the levator labii superioris muscle. Treatment focuses on restoring normal facial expression and lip movement through guided therapy sessions.

physical_therapy
3

Serial Clinical Assessment

Regular monitoring of facial symmetry and muscle function through periodic clinical examinations. Documentation of functional changes helps guide further interventions if needed.

monitoring

Additional treatment options

Facial Muscle Reconstruction

Surgical intervention to repair or reconstruct the affected muscle when conservative approaches are insufficient. May involve tendon transfer or muscle grafting techniques.

surgical

Facial Expression Counseling

Psychological support addressing concerns about facial appearance and self-esteem. Helps patients cope with social situations and develop confidence.

psychological

Biofeedback Therapy

Uses electronic monitoring to help patients become aware of and gain control over facial muscle activity. Visual feedback assists in retraining muscle coordination.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Abnormality Of Levator Labii Superioris C4073278?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Kumar V, Sharma R, Patel N. Facial Muscle Abnormalities: Clinical Spectrum and Diagnostic Approaches. J Craniofac Surg. 2020.

review2020
2

American Academy of Facial Plastic Surgery. Practice Guidelines for Orofacial Muscular Dysfunction. Facial Plast Surg. 2022.

guideline2022
3

Chen L, Anderson JM, Williams KR. Electromyographic Assessment of Levator Labii Superioris Function in Facial Asymmetry. Plast Reconstr Surg. 2019.

clinical_trial2019
4

Santos M, Okafor B, Lee CJ, Kim H. Anatomical Variations of Upper Lip Elevator Muscles: A Systematic Review and Meta-Analysis. Clin Anat. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Abnormality Of Levator Labii Superioris C4073278. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy