Endocrine and Metabolic Health
Endocrine and metabolic health in adolescence covers the hormonal and metabolic systems that drive growth, pubertal maturation, energy balance, and reproductive function during the second decade of life. Because adolescence is itself a period of intense endocrine change, disorders of glucose regulation, the thyroid axis, growth, and ovarian function present with features that overlap normal development, making this a distinct reference area within adolescent health.
Definition
Endocrine and metabolic health in adolescents refers to the function and disorders of hormone-producing glands and metabolic pathways that govern growth, puberty, glucose and energy metabolism, and reproductive endocrine function during adolescence, classified under endocrine system diseases.
Scope
This area orients the reader to the main endocrine and metabolic conditions that emerge or are managed in adolescence: type 1 and type 2 diabetes, thyroid disorders including autoimmune thyroiditis, growth disorders and short stature, and polycystic ovary syndrome. It frames how these conditions relate to the physiology of puberty and growth, and points to the individual topic entries for detail. It is educational reference material, not clinical guidance.
Sub-topics
Core questions
- How do disorders of glucose regulation, the thyroid axis, growth, and ovarian function present differently in adolescents than in adults?
- How can clinicians distinguish pathological endocrine change from the normal hormonal variation of puberty and growth?
- How do incidence and presentation of these conditions vary by age, sex, and population?
Key concepts
- Hypothalamic-pituitary axis regulation
- Puberty and the growth spurt
- Glucose homeostasis and insulin action
- Autoimmunity (type 1 diabetes, autoimmune thyroiditis)
- Insulin resistance and adiposity
- Hyperandrogenism
- Transition from pediatric to adult care
Mechanisms
The conditions grouped here share a common dependence on the hypothalamic-pituitary axes that mature during adolescence. Some are autoimmune, in which immune-mediated destruction or stimulation of an endocrine gland disrupts hormone output, as in type 1 diabetes and autoimmune thyroiditis. Others reflect resistance to or relative deficiency of hormone action, as in type 2 diabetes, where insulin resistance linked to adiposity outpaces beta-cell secretion (Ahmad, 2022). Growth disorders arise from disturbances along the growth hormone-IGF-I axis or from genetic and skeletal conditions affecting the growth plate (Grimberg, 2016), while polycystic ovary syndrome reflects a hyperandrogenic, often insulin-resistant state expressed through the ovary (Teede, 2023). Because the same axes are physiologically active during puberty, pathological signals can be hard to separate from normal maturation.
Clinical relevance
Adolescent endocrine and metabolic conditions are common reasons for referral to pediatric endocrinology and often require coordinated, longitudinal care that eventually transitions to adult services. Understanding how these disorders intersect with puberty and growth supports accurate interpretation of clinical evidence and guidelines. This entry describes the area for reference and education and is not a basis for individual diagnostic or treatment decisions.
Epidemiology
Type 1 diabetes remains the predominant form of diabetes in youth, while type 2 diabetes incidence has risen alongside adolescent obesity (Mayer-Davis, 2017). Autoimmune thyroid disease is among the most frequent endocrine disorders of adolescence, and polycystic ovary syndrome is a leading cause of menstrual and hyperandrogenic complaints in adolescent girls. Incidence and presentation differ by age, sex, and population, which the individual topic entries describe in more detail.
History
Adolescent endocrinology emerged as a distinct field as pediatric subspecialty care developed through the twentieth century, with growth hormone therapy, structured diabetes care, and recognition of adolescent-specific presentations of thyroid and ovarian disorders. Contemporary international guidelines for growth, diabetes, and polycystic ovary syndrome now explicitly address the adolescent population rather than extrapolating from adults.
Related topics
Seminal works
- mayer-davis-2017
- teede-2023
- grimberg-2016
Frequently asked questions
- What endocrine and metabolic conditions are most relevant in adolescence?
- The principal ones are type 1 and type 2 diabetes, thyroid disorders including autoimmune thyroiditis, growth disorders and short stature, and polycystic ovary syndrome. Each has its own topic entry.
- Why is adolescence a distinct context for these disorders?
- Puberty and the growth spurt involve intense hormonal change, so endocrine disorders in adolescents often present with features that overlap normal development, and management must account for ongoing growth and the eventual transition to adult care.