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Living with Oromandibular-limb hypogenesis spectrum

A rare nerve and muscle condition, Moebius syndrome, that affects facial expression and eye movement from birth.

Understanding Oromandibular-limb hypogenesis spectrum

Oromandibular-limb hypogenesis spectrum, also called Moebius syndrome, is a rare neurological condition that mainly affects the muscles for facial expression and eye movement.

Signs are present from birth. Many people cannot smile, frown, or raise their eyebrows, and weak face muscles cause feeding problems in infancy. Many have a small chin, small mouth, or cleft palate, plus speech and dental differences. Eye movement is limited, and the eyelids may not close fully. Hand and foot bone differences, low muscle tone, and hearing loss can occur. GARD lists onset as during pregnancy and as a newborn.

Signs & symptoms

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

  • Weak or paralyzed face muscles (facial palsy)
  • Expressionless face
  • Limited eye movement and crossed eyes
  • Feeding difficulties in infancy
  • Low muscle tone and delayed motor skills
  • Club feet and short fingers or toes

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, ear, nose, and throat specialists, eye disease specialists and genetic 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

    Moebius Syndrome Foundation and World Craniofacial Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Ear, nose, and throat specialists (otolaryngologists); Eye disease specialists (ophthalmologists); Genetic specialists (geneticists)
Expert care
Expert lists: Moebius Syndrome Foundation, World Craniofacial Foundation
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 Moebius Syndrome Foundation 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
How can we protect the eyes if the eyelids don't close fully?
Which therapies can help with feeding, speech, and motor skills?
Which specialists should be part of our care team?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Dominant

GARD says changes in genes cause this condition. It lists autosomal dominant inheritance, meaning one changed copy of a gene can be enough.

GeneticNeurological

Also known as: absence or underdevelopment of the 6th and 7th cranial nerves; congenital facial diplegia; congenital facial diplegia syndrome; congenital oculofacial paralysis; facial-limb disruptive spectrum; hypoglossia-hypodactyly syndrome

Patient organizations

Source: NIH GARD · Oromandibular-limb hypogenesis spectrumGARD ID 8549 · 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 Oromandibular-limb hypogenesis spectrum.

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