DiGeorge syndrome

Also called 22q11.2 deletion syndrome or Velocardiofacial syndrome

DiGeorge syndrome, also called 22q11 deletion syndrome, is a condition present from birth caused by a small missing part of chromosome 22. It can affect many parts of the body, and how much varies widely. Common problems include heart defects, a cleft palate, low calcium, immune system problems and learning difficulties.

Last updated Nov 9, 2026

What it is

Most cases happen by chance, but a parent with the deletion has a 1 in 2 chance of passing it on.

There is no cure, but each problem can be treated, for example with heart surgery, calcium supplements, speech therapy and educational support. Many people live full adult lives.

Common signs

  • A heart defect found at birth
  • A cleft palate or feeding problems
  • Frequent infections
  • Low calcium causing muscle spasms or seizures
  • Delayed speech and learning difficulties

How it is usually diagnosed

  • Genetic testing (microarray or FISH)
  • Heart scans, calcium and immune tests

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Genetic test results
  • Heart scan and operation reports
  • Calcium and immune test results
  • Therapy and school support plans

Questions to ask your doctor

  • Which parts of the body need checking, and how often?
  • Should we be tested as parents?
  • Which vaccines are safe for our child?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Seizures, muscle spasms, a baby with blue lips or breathing difficulty: call 112

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources