A wide range of conditions associated with malfunction of endocrine glands including absent, insufficient, and excessive production of hormones. Several have characteristic clinical features, sometimes associated with a distinct physical appearance. Causes include surplus or deficient production of hormone, associated with environment or diet, or with an inflammatory or neoplastic lesion of the affected endocrine organ. Sometimes hormonal dysfunctions interact, for instance, when pituitary dysfunction affects the function of the thyroid, suprarenals, and gonads. Public health relevance of endocrine disorders arises in several ways, for instance, in control of iodine deficiency disorders and in screening for diabetes.
Subjects: Public Health and Epidemiology.