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Living with Facial hemiatrophy

A slowly progressing condition in which the skin and soft tissue on one side of the face shrink.

Understanding Facial hemiatrophy

Facial hemiatrophy (Parry-Romberg syndrome) is a condition with slow shrinking of the skin and soft tissue on one side of the face.

It sometimes affects both sides of the face and occasionally the arm, trunk, or leg. It can worsen for many years and then stabilize. Severity varies a lot. It occurs from childhood to adulthood.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Shrinking of skin and tissue on one side of the face
  • Facial asymmetry
  • Small lower jaw (micrognathia)
  • Darker skin patches
  • Muscle changes
  • Seizures

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists and seizure and epilepsy specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Autoimmune Association, Facial Pain Association and Global Autoimmune Institute may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Seizure and epilepsy specialists (epileptologist)
Expert care
Expert lists: Autoimmune Association, Facial Pain Association, Global Autoimmune Institute
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Autoimmune Association and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Which specialists should be involved in my care?
How often should the condition be monitored?
What options exist to improve the shape of the face?

Quick facts

Symptoms usually startfrom Childhood to Adulthood

GARD says the cause is not well understood and may differ among people.

Neurological

Also known as: atrophy of half of face; atrophy of one side of the face; facial trophoneurosis; hemifacial atrophy; parry romberg syndrome; parry-romberg syndrome

Patient organizations

Source: NIH GARD · Facial hemiatrophyGARD ID 7338 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Facial hemiatrophy.

Explore the Facial hemiatrophy blog

Explore research for Facial hemiatrophy

Explore actively recruiting Facial hemiatrophy studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Facial hemiatrophy with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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