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Living with Deafness-intellectual disability, Martin-Probst type syndrome

A rare X-linked condition with hearing loss from birth, intellectual disability, short stature, and distinct facial features.

Understanding Deafness-intellectual disability, Martin-Probst type syndrome

Deafness-intellectual disability, Martin-Probst type syndrome, is a rare X-linked condition that causes hearing loss and intellectual disability.

Hearing loss is present from birth, and intellectual disability varies in degree. Other features include short stature and distinct facial and dental differences. Some people have a small head, kidney or genital differences, and low blood cell counts that start in adulthood.

Signs & symptoms

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

  • Intellectual disability (moderate to severe)
  • Small head size (microcephaly)
  • Nearsightedness (myopia)
  • Cataracts
  • Low blood cell counts (pancytopenia)
  • Dental differences and bad bite

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 brain and nervous system specialists, ear, nose, and throat specialists, eye disease specialists and 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
Brain and nervous system specialists (neurologists); Ear, nose, and throat specialists (otolaryngologists); Eye disease specialists (ophthalmologists); 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 rare disease patient organizations for support
  • 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 should hearing and blood counts be monitored?
Can genetic testing find the gene involved?
What therapies can support learning and development?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceX-Linked

GARD says changes in genes cause this condition. It is X-linked, meaning the gene is on the X chromosome.

GeneticNeurological

Also known as: deafness and intellectual disability martin probst type syndrome; deafness-intellectual disability syndrome, martin-probst type; hearing loss-intellectual disability syndrome, martin-probst type; intellectual disability, x-linked, syndromic, martin-probst type; martin probst syndrome; martin-probst syndrome

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Deafness-intellectual disability, Martin-Probst type syndromeGARD ID 16750 · 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 Deafness-intellectual disability, Martin-Probst type syndrome.

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