What Is It?
Addison’s disease is a rare disorder of the adrenal glands in which the body doesn’t produce enough of certain essential hormones — primarily cortisol and sometimes aldosterone. The adrenal glands, located above the kidneys, play a key role in regulating metabolism, immune response, blood pressure, and other critical functions. When they don’t work properly, the body can’t respond effectively to stress or maintain vital balance in fluids and electrolytes.

Why It Matters
Without enough cortisol, the body struggles to manage physical stress, fight infections, and regulate energy. Addison’s disease can develop slowly, with vague symptoms, but it can also lead to a life-threatening condition known as Addisonian crisis if not treated — a medical emergency that requires immediate intervention. Early diagnosis is essential to prevent serious health risks and restore hormone balance through treatment.

Key Facts (At a Glance)

• Prevalence: Roughly 1 in 100,000 people in the U.S.

• Most Common In: Adults aged 30–50, but can occur at any age

• Type: Considered primary adrenal insufficiency

• Gender: Slightly more common in females

• Cause: Most often autoimmune destruction of the adrenal glands

How It Affects the Body
In Addison’s disease, damage to the adrenal cortex prevents normal hormone production. The lack of cortisol disrupts blood sugar regulation, immune system balance, and the body’s ability to respond to stress. If aldosterone is also deficient, it causes imbalances in sodium, potassium, and fluid levels, which can lead to dangerously low blood pressure and dehydration. Over time, the body becomes increasingly vulnerable to stressors like illness or injury.

Common Symptoms

• Ongoing fatigue and muscle weakness

• Weight loss and decreased appetite

• Darkening of the skin (hyperpigmentation), especially in scars or skin creases

• Low blood pressure, especially when standing (dizziness, fainting)

• Salt cravings

• Nausea, vomiting, or diarrhea

• Abdominal pain

• Depression or irritability

• Irregular or absent menstrual periods in women

Risks & Side Effects
If left untreated, Addison’s disease can lead to:

• Addisonian crisis: Severe pain, low blood pressure, vomiting, loss of consciousness — requires emergency corticosteroid treatment

• Electrolyte imbalances (e.g., high potassium, low sodium)

• Severe fatigue and weight loss

• Increased risk of autoimmune diseases (e.g., thyroid disease, type 1 diabetes)

• Adrenal crisis during physical stress, such as illness or surgery, without medication adjustment

Who Should Be Cautious

• People with other autoimmune conditions (e.g., thyroid disease, type 1 diabetes)

• Those with a family history of autoimmune adrenal disease

• Individuals taking long-term corticosteroids (may suppress adrenal function)

• Anyone with unexplained chronic fatigue, low blood pressure, or skin changes

When to See a Doctor
Seek medical evaluation if you experience:

• Persistent fatigue with unexplained weight loss

• Unusual skin darkening

• Low blood pressure or fainting spells

• Salt cravings or nausea without cause

• Symptoms worsen significantly during illness or injury
  

  *** Seek emergency care if symptoms of Addisonian crisis appear — this includes severe weakness, confusion, low blood pressure, and vomiting.

Related Conditions / Interactions

• Secondary Adrenal Insufficiency: Caused by pituitary problems, not adrenal gland damage

• Autoimmune Polyglandular Syndrome: Cluster of autoimmune diseases including Addison’s

• Thyroid disorders: Often co-occur with Addison’s

• Type 1 Diabetes: Another autoimmune condition often associated with Addison’s

Last Updated: June 15, 2025