Short answer · Medically reviewed summary · Last updated: 2026-05-08
CHARGE syndrome is a complex, multisystem genetic condition that typically presents at birth with a specific set of physical features, including eye abnormalities, heart defects, and hearing loss. It is primarily caused by mutations in the CHD7 gene, which plays a critical role in the early development of many organ systems. What are the primary symptoms of CHARGE syndrome? The name CHARGE syndrome is an acronym that summarizes the clinical features historically used to diagnose the condition: Coloboma (eye defects), Heart defects, Atresia of the choanae (blocked nasal passages), Retardation of growth and development, Genital abnormalities, and Ear abnormalities.
What is CHARGE Syndrome
What is CHARGE Syndrome? Plain-language, medically reviewed definition plus the lived reality told by patients.
CHARGE syndrome is a complex, multisystem genetic condition that typically presents at birth with a specific set of physical features, including eye abnormalities, heart defects, and hearing loss. It is primarily caused by mutations in the CHD7 gene, which plays a critical role in the early development of many organ systems.
What are the primary symptoms of CHARGE syndrome?
The name CHARGE syndrome is an acronym that summarizes the clinical features historically used to diagnose the condition: Coloboma (eye defects), Heart defects, Atresia of the choanae (blocked nasal passages), Retardation of growth and development, Genital abnormalities, and Ear abnormalities. While these are the hallmark signs, individuals with CHARGE syndrome may also experience cranial nerve dysfunction, which can lead to difficulties with swallowing, facial movement, or balance.
How common is CHARGE syndrome and who is affected?
CHARGE syndrome is a rare disorder with an estimated birth prevalence ranging from 1 in 8,500 to 1 in 15,000 live births worldwide. It affects males and females equally, and there is no known geographic, ethnic, or racial predisposition. Because it is a developmental condition, the diagnosis is almost always made during the newborn period or early infancy, though milder cases may occasionally be identified later in childhood.
What causes this condition?
In approximately 65% to 70% of clinical cases, CHARGE syndrome is caused by a mutation in the CHD7 gene. This gene provides instructions for making a protein that regulates gene expression during embryonic development. Most cases occur sporadically as a "de novo" mutation, meaning it is not inherited from the parents, though genetic counseling is essential to assess recurrence risks for future pregnancies.
What differentiates CHARGE syndrome from other conditions?
- Distinctive Ear Anatomy: Many children with CHARGE syndrome have "CHARGE ears," which are short, wide, and lack a defined earlobe.
- Cranial Nerve Issues: Unlike many other syndromes, CHARGE syndrome is uniquely associated with specific cranial nerve deficits affecting smell (anosmia) and facial expression.
- Clinical Complexity: The combination of sensory (vision/hearing) and structural (heart/nasal) challenges requires a highly coordinated multidisciplinary care team.
Next steps
- Consult with a clinical geneticist to discuss CHD7 testing and family planning.
- Connect with the 122 members of the DiseaseMaps.org community who are navigating life with CHARGE syndrome.
- Establish care with a coordinated team including an ENT, cardiologist, ophthalmologist, and speech-language pathologist.
- Review resources from the CHARGE Syndrome Foundation for the latest clinical guidelines.
Medical disclaimer: This information is for educational purposes only and should not replace professional medical advice, diagnosis, or treatment.
References
- NIH Genetic and Rare Diseases Information Center (GARD): CHARGE syndrome.
- Orphanet: Rare disease database for CHARGE syndrome.
- OMIM (Online Mendelian Inheritance in Man): CHD7 gene and clinical features.
- The CHARGE Syndrome Foundation: Clinical resources and patient support.
