Hyperglycemia is caused by diabetes mellitus, which is caused by a lack of insulin production (type 1) or peripheral insulin resistance (type 2), both of which cause hyperglycemia. Although the kinds of diabetes mellitus (diabetes) seen in children are similar to those seen in adults, psychosocial issues might complicate treatment. The most frequent type of diabetes in children is type 1, which accounts for two-thirds of new cases in children of all ethnic groups.
The endocrine system consists of a number of glands located throughout the body that release hormones directly into the bloodstream rather than through a duct system. Endocrine glands are thus referred to as ductless glands. Hormones have a wide range of functions and modes of action; one hormone may have several effects on various target organs, and one target organ may be impacted by multiple hormones. Endocrinology is a discipline of biology and medicine that studies the endocrine system, its disorders, and the hormones that are secreted by it.