How do I know if I have 22q11 DiGeorge Syndrome?

TL;DR: 22q11 DiGeorge Syndrome is a genetic condition caused by a small deletion on chromosome 22, characterized by a wide spectrum of symptoms including heart defects, immune system challenges, and learning differences. If you suspect you or a loved one has 22q11 DiGeorge Syndrome, clinical diagnosis is confirmed through a specialized genetic blood test known as a chromosomal microarray or FISH analysis.

What are the early signs and symptoms of 22q11 DiGeorge Syndrome?

Because 22q11 DiGeorge Syndrome presents with extreme variability—even among family members—symptoms can range from mild to severe. In children, common clinical indicators include a history of recurrent infections due to a small or absent thymus, heart defects present from birth (such as tetralogy of Fallot), and distinct facial features. However, many individuals with 22q11 DiGeorge Syndrome are not diagnosed until adolescence or adulthood. In these cases, symptoms may manifest as chronic hypocalcemia (low blood calcium), speech and language delays, or psychiatric conditions such as anxiety, ADHD, or schizophrenia-spectrum disorders.

How can I recognize the patterns of 22q11 DiGeorge Syndrome in my own health?

Self-assessment for 22q11 DiGeorge Syndrome involves looking for a constellation of systemic issues rather than one single sign. It is helpful to consider if you have a history of the following patterns, which are frequently reported by the 215 members of our DiseaseMaps community:

• Cardiac history: Congenital heart defects or vascular anomalies.


• Endocrine health: Persistent low calcium levels or hypoparathyroidism.


• Immune function: A history of frequent, hard-to-treat infections.


• Developmental/Learning: History of specific learning disabilities or speech delays in childhood.


• Palatal differences: A history of cleft palate or velopharyngeal insufficiency (nasal speech).

When should I talk to my doctor and what tests should I request?

If you suspect you have 22q11 DiGeorge Syndrome, you should request a consultation with a geneticist or a primary care physician who is familiar with rare, multisystemic conditions. When speaking with your doctor, be direct: "I am concerned about 22q11 DiGeorge Syndrome due to my personal history of [list symptoms]. Can we discuss genetic testing?" The gold-standard test is a chromosomal microarray (CMA), which identifies the microdeletion on chromosome 22. In some cases, a FISH (fluorescence in situ hybridization) test may be used to specifically target the 22q11.2 region.

What are the red flags that require urgent medical attention?

While 22q11 DiGeorge Syndrome is a chronic condition, certain symptoms require immediate evaluation. Seek emergency care if you experience signs of severe hypocalcemia, such as muscle spasms, tingling in the hands or feet, or seizures. Additionally, if you have known cardiac issues associated with 22q11 DiGeorge Syndrome, any sudden chest pain or shortness of breath should be addressed urgently by a cardiologist.

How do I advocate for myself if my concerns are dismissed?

Rare diseases are often overlooked in primary care. If you feel your concerns are being dismissed, bring documented medical records—such as cardiac reports, immunology labs, or school evaluations—to your appointment. If a physician remains hesitant, you are fully within your rights to request a referral to a genetic counselor or a specialist at a major academic medical center. Remember, you are the expert on your own body, and persistent advocacy is a vital part of the diagnostic journey for 22q11 DiGeorge Syndrome.

Next steps

• Consult a medical geneticist to discuss the appropriateness of chromosomal microarray testing.


• Gather your medical records, focusing on cardiac, endocrine, and immunological history.


• Join the 22q11 DiGeorge Syndrome community at DiseaseMaps.org to connect with others who share your experience.


• Explore resources from the International 22q11.2 Foundation for patient-specific guidance.

Medical disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition.

References

• NIH Genetic and Rare Diseases Information Center (GARD): 22q11.2 deletion syndrome.


• Orphanet: 22q11.2 deletion syndrome (ORPHA:567).


• OMIM (Online Mendelian Inheritance in Man): 22q11.2 Deletion Syndrome (Entry #188400).


• The International 22q11.2 Foundation: Patient and family resources.