<Tr> <Th> Fields of employment </Th> <Td> Hospitals, Clinics </Td> </Tr> <P> Although every organ system secretes and responds to hormones (including the brain, lungs, heart, intestine, skin, and the kidney), the clinical specialty of endocrinology focuses primarily on the endocrine organs, meaning the organs whose primary function is hormone secretion . These organs include the pituitary, thyroid, adrenals, ovaries, testes, and pancreas . </P> <P> An endocrinologist is a physician who specializes in treating disorders of the endocrine system, such as diabetes, hyperthyroidism, and many others (see list of diseases). </P> <P> The medical specialty of endocrinology involves the diagnostic evaluation of a wide variety of symptoms and variations and the long - term management of disorders of deficiency or excess of one or more hormones . </P>

Physician who studies and treats diseases of the endocrine system