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Living with Hyperimmunoglobulin D with periodic fever

An inherited inflammatory condition with repeating episodes of fever, joint pain, rash, and belly pain starting in infancy.

Understanding Hyperimmunoglobulin D with periodic fever

Hyperimmunoglobulin D with periodic fever (hyper IgD syndrome) is the milder form of a condition called mevalonate kinase deficiency.

It is an auto-inflammatory disease, meaning the body causes inflammation without a clear trigger. People have periodic episodes of fever, often with joint pain, swollen lymph nodes, skin rash, headaches, and belly pain. Most episodes last several days and recur throughout life. Attacks may be set off by vaccines, infections, or stress. Growth and development are usually not affected.

Signs & symptoms

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

  • Fever that comes and goes
  • Belly pain and diarrhea
  • Joint pain and arthritis
  • Swollen lymph nodes
  • Skin rash or hives
  • Recurrent canker sores

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 autoimmune and inflammatory disease specialists, allergy and immune system specialists, genetic specialists and skin, hair, and nail specialists.

  3. Consider genetic testing

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

  4. Connect with expert centers

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

Care & treatment

Care team
autoimmune and inflammatory disease specialists (rheumatologists); Allergy and immune system specialists (allergists / immunologists); Genetic specialists (geneticists); Skin, hair, and nail specialists (dermatologists)
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 Jeffrey Modell Foundation 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
What can trigger my attacks, and can I avoid them?
Which treatments can ease or prevent episodes?
Would genetic testing for MVK help our family?

Quick facts

Symptoms usually startInfant
InheritanceAutosomal Recessive
GenesMVK

Changes in the MVK gene cause this condition and lead to a partial shortage of an enzyme called mevalonate kinase. It is autosomal recessive, so a child inherits a changed copy of the gene from each parent.

GeneticSkinInherited Metabolic

Also known as: hids; hids - hyper-igd periodic fever syndrome; hyper igd syndrome; hyper-igd periodic fever syndrome; hyper-igd syndrome; hyper-immunoglobulin d periodic fever syndrome

Patient organizations

Source: NIH GARD · Hyperimmunoglobulin D with periodic feverGARD ID 2788 · 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

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