Addison’s disease is a rare adrenal gland disease that causes various symptoms, including distinct skin effects like hyperpigmentation and vitiligo. Addison’s disease is rare. It’s often due to ...

Medically reviewed by Robert Burakoff, MD Key Takeaways A cortisol test measures the level of cortisol in your body to help ...

Addison’s disease occurs when your adrenal glands produce too little cortisol. Cushing syndrome is when you have too much cortisol in your body. Addison’s disease is a condition where your adrenal ...