Endocrinology is the branch of medicine that deals with the hormone related issues. The endocrine system has different organs such as the pituitary gland, thyroid gland, adrenals gland, ovaries, testes, and pancreas. The hormones released by the glands perform various functions. The abnormal level of hormones in the blood causes different health conditions. Endocrinology deals with the diagnosis and treatment of problems such as thyroid, Hashimoto’s disease, Grave’s disease, PCOD, Cystic Fibrosis etc. occurred because of the abnormal level of hormones.