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Living with Mandibular hypoplasia-deafness-progeroid syndrome

A rare genetic syndrome with hearing loss, loss of body fat, a small jaw, and signs that look like early aging.

Understanding Mandibular hypoplasia-deafness-progeroid syndrome

Mandibular hypoplasia-deafness-progeroid syndrome is a rare genetic condition with hearing loss, a small lower jaw, and features that resemble early aging.

From childhood, people lack fat under the skin, though fat may build up on the trunk. They have hearing loss from the inner ear, hardened skin (scleroderma), and distinct facial features. Growth delay, stiff joints, hormone problems, and diabetes can also occur.

Signs & symptoms

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

  • Hearing loss from the inner ear
  • Loss of fat tissue (lipodystrophy)
  • Small lower jaw (micrognathia)
  • Insulin resistance and diabetes
  • Stiff joints (contractures)
  • Thinning bones (osteoporosis)

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 ear, nose, and throat specialists, genetic specialists, hormone specialists and skin, hair, and nail specialists.

  3. Consider genetic testing

    Changes in POLD1 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Ear, nose, and throat specialists (otolaryngologists); Genetic specialists (geneticists); Hormone specialists (endocrinologists); Skin, hair, and nail specialists (dermatologists)
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 Children's Skin Disease Foundation
  • 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 I have POLD1 genetic testing, and should relatives be tested?
How should blood sugar and insulin resistance be monitored?
Who should follow hearing, bones, and hormones?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Dominant
GenesPOLD1

Changes in the POLD1 gene cause this condition. It is inherited in an autosomal dominant way, so a change in one copy of the gene can be enough.

GeneticEndocrineSkin

Also known as: mandibular hypoplasia-deafness-progeroid features-lipodystrophy syndrome; mandibular hypoplasia-hearing loss-progeroid syndrome; mandibular hypoplasia, deafness, progeroid features, and lipodystrophy syndrome; mdp syndrome; mdpl syndrome

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Mandibular hypoplasia-deafness-progeroid syndromeGARD ID 10989 · 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 Mandibular hypoplasia-deafness-progeroid syndrome.

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