Endocrine disorder is a condition caused by the overproduction or production of endocrine hormones (the glands that secrete hormones directly in the blood) such as pancreas, pituitary gland, thyroid and adrenal glands. Examples of endocrine disorders include diabetes, hyperthyroidism, Graves' disease, Addison's disease, hyperthyroidism, Cushing syndrome and other disorders. Synonyms: endocrine disease