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Living with 16p13.11 microdeletion syndrome

A genetic condition that can bring developmental delay, seizures, short height, and behavior concerns.

Understanding 16p13.11 microdeletion syndrome

16p13.11 microdeletion syndrome is a genetic condition caused by a missing piece of chromosome 16.

People with this condition can have developmental delay, a smaller head size (microcephaly), and epilepsy. Short stature, distinct facial features, and behavior problems are also part of it. GARD lists onset as the newborn and infant period.

Signs & symptoms

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

  • Global developmental delay
  • Delayed speech and language
  • Small head size (microcephaly)
  • Generalized seizures
  • Short stature
  • Specific learning disability

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 genetic specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Genetic specialists (geneticists)
Expert care
Ask about multidisciplinary care centers for rare conditions
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 Simons Searchlight 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 neurologist for seizures?
What educational support is available for learning disabilities?
Can testing show if a parent also has this deletion?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Dominant

GARD says changes in genes (also called variants) cause this condition. It is a missing piece of chromosome 16 and is listed as autosomal dominant.

Genetic

Also known as: 16p13.11 recurrent microdeletion (neurocognitive disorder susceptibility locus); del(16)(p13.11); monosomy 16p13.11

Patient organizations

Source: NIH GARD · 16p13.11 microdeletion syndromeGARD ID 20774 · 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 16p13.11 microdeletion syndrome.

Explore the 16p13.11 microdeletion syndrome blog

Explore research for 16p13.11 microdeletion syndrome

Explore actively recruiting 16p13.11 microdeletion syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for 16p13.11 microdeletion syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
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  • 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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