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Living with Short-limb skeletal dysplasia with severe combined immunodeficiency

An extremely rare genetic condition with a very weak immune system and short, bowed limbs.

Understanding Short-limb skeletal dysplasia with severe combined immunodeficiency

Short-limb skeletal dysplasia with severe combined immunodeficiency is an extremely rare type of SCID that also affects the bones.

People have the usual signs of SCID: severe and repeated infections, diarrhea, poor weight gain, and no T or B lymphocytes (infection-fighting cells). They also have bone differences, including short stature, bowed long bones and changes at the ends of the long bones. Signs start in the newborn and infant period.

Signs & symptoms

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

  • Very weak immune system (SCID)
  • Repeated lung and airway infections
  • Few infection-fighting white blood cells
  • Fine hair
  • Weaker, less dense bones
  • Short, bowed limb bones

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 allergy and immune system specialists and genetic specialists.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Immune Deficiency Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Allergy and immune system specialists (allergists / immunologists); Genetic specialists (geneticists)
Expert care
Expert lists: Immune Deficiency Foundation
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 Immune Deficiency 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
Which immune specialists should care for my child?
How can we lower the risk of infections?
Can genetic testing help us understand the chances for future children?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive

GARD doesn't list a gene. The condition is inherited in an autosomal recessive way, so a child inherits a changed copy of a gene from each parent.

Genetic

Also known as: achondroplasia-scid syndrome; achondroplasia-severe combined immunodeficiency syndrome; achondroplasia-swiss type agammaglobulinemia syndrome; achondroplasia, severe combined immunodeficiency syndrome; immunodeficiency-short limb dwarfism syndrome; immunodeficiency, short limb dwarfism syndrome

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Short-limb skeletal dysplasia with severe combined immunodeficiencyGARD ID 2988 · 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 Short-limb skeletal dysplasia with severe combined immunodeficiency.

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