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Living with Distal 10q deletion syndrome

A chromosome condition caused by a missing piece at the tip of chromosome 10, with developmental delay and distinct facial features.

Understanding Distal 10q deletion syndrome

Distal 10q deletion syndrome, also called 10q26 deletion syndrome, results from the loss of a small piece of chromosome 10 in each cell.

Signs vary widely, even within a family. Common features include distinct facial features, mild to moderate intellectual disability, growth problems, and developmental delay, including delayed speech and motor skills. Some people have seizures, ADHD, impulsivity, or autistic behaviors. GARD lists onset during pregnancy or in the newborn period.

Signs & symptoms

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

  • Delayed speech and language
  • Distinct facial features
  • Low muscle tone in infants
  • Crossed eyes (strabismus)
  • Behavior differences
  • Bedwetting (enuresis)

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 Chromosome Disorder Outreach
  • 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
How large is my or my child's deletion, and which genes are in it?
Which therapies can help with speech and movement?
Should the kidneys, heart, and brain be checked?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Dominant

It is caused by a deletion at 10q26, a missing piece on the long arm of chromosome 10. GARD lists autosomal dominant inheritance.

Genetic

Also known as: chromosome 10q26 deletion syndrome; distal deletion 10q; distal monosomy 10q; distal monosomy type 10q; monosomy 10qter; telomeric deletion 10q

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Distal 10q deletion syndromeGARD ID 3711 · 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 Distal 10q deletion syndrome.

Explore the Distal 10q deletion syndrome blog

Explore research for Distal 10q deletion syndrome

Explore actively recruiting Distal 10q deletion syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Distal 10q deletion 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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