Short answer · Medically reviewed summary · Last updated: 2026-04-06
The prevalence of Addison Disease, or primary adrenal insufficiency, is estimated to be between 100 and 140 cases per million people in industrialized nations, though these figures often vary by region. Epidemiological Overview In terms of incidence, Addison Disease is diagnosed in approximately 5 to 6 new cases per million people annually. While this places the condition within the "rare disease" category, it remains one of the most significant endocrine disorders managed by specialists.
5 people with Addison Disease have shared their first-person experience on this question at DiseaseMaps.
What is the prevalence of Addison Disease?
Prevalence of Addison Disease: how many people are affected worldwide, differences by sex and region, with sources.
The prevalence of Addison Disease, or primary adrenal insufficiency, is estimated to be between 100 and 140 cases per million people in industrialized nations, though these figures often vary by region.
Epidemiological Overview
In terms of incidence, Addison Disease is diagnosed in approximately 5 to 6 new cases per million people annually. While this places the condition within the "rare disease" category, it remains one of the most significant endocrine disorders managed by specialists. Because the early symptoms of Addison Disease—such as fatigue, weight loss, and mild hypotension—are non-specific, the condition is frequently underdiagnosed or misdiagnosed, suggesting that the true prevalence may be higher than current epidemiological data indicates.
Demographics and Onset
Addison Disease typically manifests in adults between the ages of 30 and 50, though it can occur at any age, including during childhood. Regarding gender distribution, autoimmune Addison Disease is reported to affect females more frequently than males, often at a ratio of approximately 2:1. There is no strong evidence suggesting significant ethnic or geographic clustering for the autoimmune form of the disease, although the prevalence of specific underlying causes, such as tuberculosis-induced adrenal insufficiency, remains higher in developing regions.
Real-World Perspectives
Standard medical literature provides a foundational baseline for understanding the scope of Addison Disease, but clinical data cannot capture the full patient experience. Within the DiseaseMaps.org community, 1,592 people living with Addison Disease have actively shared their journeys. This real-world evidence provides invaluable insights into the diagnostic delays and the day-to-day management of the condition that are often missing from traditional clinical registries. By connecting with this community, patients and caregivers can find support that complements the clinical understanding of the disease's rarity and impact.
Disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment. Always seek the advice of your endocrinologist or other qualified health provider with any questions you may have regarding a medical condition.
References
- Orphanet: Primary Adrenal Insufficiency (Addison's Disease)
- NIH Genetic and Rare Diseases Information Center (GARD): Addison's Disease
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK): Adrenal Insufficiency & Addison's Disease
Addison's disease arises from problems with the adrenal gland such that not enough of the steroid hormone cortisol and possibly aldosterone are produced,[1] most often due to damage by the body's own immune system in the developed world and tuberculosis in the developing world.[4] Other causes include certain medications, sepsis, and bleeding into both adrenal glands.[1][4] Secondary adrenal insufficiency is caused by not enough adrenocorticotropic hormone (ACTH) (produced by the pituitary gland) or CRH (produced by the hypothalamus). Despite this distinction, adrenal crises can happen in all forms of adrenal insufficiency. Addison's disease is generally diagnosed by blood tests, urine tests, and medical imaging.[1]
Treatment involves replacing the absent hormones.[1] This involves taking a corticosteroid such as hydrocortisone and fludrocortisone.[1][2] These medications are usually taken by mouth.[1] Lifelong, continuous steroid replacement therapy is required, with regular follow-up treatment and monitoring for other health problems.[5] A high-salt diet may also be useful in some people. If symptoms worsen, an injection of corticosteroid is recommended and people should carry a dose with them. Often, large amounts of intravenous fluids with the sugar dextrose are also required. Without treatment, an adrenal crisis can result in death.[1]
Addison's disease affects about 0.9 to 1.4 per 10,000 people in the developed world.[1][3] It occurs most frequently in middle-aged females.[1] Secondary adrenal insufficiency is more common.[3] Long-term outcomes with treatment are typically good.[6] It is named after Thomas Addison, a graduate of the University of Edinburgh Medical School, who first described the condition in 1855.[7] The adjective "addisonian" is used to describe features of the condition, as well as people with Addison's disease.[8]
Posted Sep 12, 2017 by Tina 2050
Posted Feb 16, 2019 by Edward 1400
I was also told it is more common in dogs
Posted Jan 14, 2023 by S 2350
Posted Oct 18, 2017 by Susana 2000
Posted Oct 31, 2017 by Dayana 2520
