When there is a decrease in cortisol secretion from the adrenal cortex.  It can be a complete or partial decrease that is seen.

Hypoadrenalism is characterized by low blood pressure, asthenia, and a  brownish discoloration of the skin

70-80% of the time there is an insuffinacy of adrenal hormone Cortisol

Tumor can be seen and is considered a rare cause agent

Symptoms include:

   -  Fatigue

   -  Weight loss

   -  Mausea

   -  Weakness

   -  Low blood pressure

Treatment is replacement of hormones