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Living with 3MC syndrome

An inherited condition with distinct facial features and differences in other tissues, plus developmental delay and hearing loss.

Understanding 3MC syndrome

3MC syndrome is an inherited disorder with unusual facial features and problems affecting other tissues and organs.

Facial features can include widely spaced eyes, narrow eye openings, droopy eyelids, highly arched eyebrows, and cleft lip and palate. Other common features are developmental delay, intellectual disability, hearing loss, and short stature. Less often, there are fused skull or forearm bones, an umbilical hernia, or kidney, bladder, or genital differences. It combines four conditions once thought to be separate. 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:

  • Cleft lip or palate
  • Droopy upper eyelids (ptosis)
  • Widely spaced eyes
  • Hearing impairment
  • Intellectual disability
  • Slow growth after birth

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 bone and joint specialists, brain and nervous system 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

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

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: 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 World Craniofacial 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
Should my child see a cleft team and have hearing tests?
Do my child's kidneys and bladder need an imaging check?
What does genetic testing show about this condition?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Recessive

GARD says changes in genes (also called variants) cause this condition. It is autosomal recessive, so a child inherits a changed copy of the gene from each parent.

GeneticNeurological

Also known as: craniofacial ulnar renal syndrome; craniofacial-ulnar-renal syndrome; malpuech-michels-mingarelli-carnevale syndrome; oculopalatoskeletal syndrome

Patient organizations

Source: NIH GARD · 3MC syndromeGARD ID 1118 · 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 3MC syndrome.

Explore the 3MC syndrome blog

Explore research for 3MC syndrome

Explore actively recruiting 3MC syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for 3MC syndrome 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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