Autoimmune polyglandular syndrome type 2: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Autoimmune polyglandular syndrome type 2?
An allergist and immunologist is a specialist in problems of the immune system and often helps manage autoimmune conditions. Care may also involve an endocrinologist, a doctor who treats hormone and gland problems. A primary care doctor can coordinate testing and referrals.
What it is
Autoimmune polyglandular syndrome type 2 is a rare condition in which the immune system attacks the body's own hormone-making glands by mistake. It usually involves at least two of three problems: Addison disease, type 1 diabetes, and thyroid disease. Because it affects several glands, it is called polyglandular, meaning many glands.
Symptoms
Symptoms depend on which glands are affected and often appear slowly over months or years. Addison disease may cause fatigue, weight loss, dark skin patches, salt cravings, or dizziness when standing. Type 1 diabetes can cause intense thirst, frequent urination, and blurry vision, while thyroid disease may lead to weight changes, feeling cold, or constipation.
Causes and who gets it
The exact cause is not fully known, but the immune system wrongly attacks healthy glands, and genes play a role. The condition can run in families and is much more common in women. Symptoms most often begin in adulthood, usually between ages 20 and 40.
How doctors diagnose it
Doctors start with a medical history, physical exam, and blood tests to measure hormone levels and look for antibodies. If Addison disease is suspected, a test checks how the adrenal glands respond to a hormone signal. Because the syndrome is rare, diagnosis can take time.
Treatment
Treatment focuses on replacing the hormones the body can no longer make. People with Addison disease take adrenal hormone medicine, needing extra during illness or surgery; those with type 1 diabetes take insulin; thyroid problems are treated with hormone pills. Doctors monitor patients over time, because one gland problem can be followed by another.
When to see a doctor
Anyone with ongoing tiredness, unexplained weight loss, dark skin patches, extreme thirst, or frequent urination should talk to a doctor. Severe vomiting, confusion, or fainting in someone with known adrenal problems is a medical emergency. Early diagnosis matters because untreated adrenal failure can be life threatening.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either can spend extra time on complex conditions, ordering tests, managing stable hormone replacement, and watching for new gland problems. When disease becomes hard to control, the doctor would refer the patient to an endocrinologist or immunologist while staying involved to coordinate care.
Common questions
Is autoimmune polyglandular syndrome type 2 curable?
No, there is no cure. Treatment replaces the missing hormones, and most people can manage the condition well with ongoing care. Results vary from person to person.
Can it be passed to children?
Genes increase the risk, and the condition can run in families. However, having a family history does not mean a child will definitely develop the syndrome.
How is it different from type 1 of the same syndrome?
Type 1 usually starts in childhood and often involves chronic yeast infections and underactive parathyroid glands. Type 2 usually starts in adulthood and involves Addison disease, type 1 diabetes, or thyroid disease.
Sources
- NIH Genetic and Rare Diseases Information Center - Polyglandular autoimmune syndrome, type 2
- National Organization for Rare Disorders (NORD) - Autoimmune Polyglandular Syndrome Type 1
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
