It is important for doctors to consider the age and sex of a patient when diagnosing endocrine disorders because the endocrine system is a network of glands that produces and releases hormones that control important body functions. Hormones affect the body different for people depending on their age or their sex. Endocrine disorders may affect a teenage boy differently to a grown woman. Women and men have different levels of hormones like testosterone or estrogen at different stages of their lives. For example, the boy would have endocrine glands such as the testes, the male reproductive glands that produce sperm and sex hormones, that the women would not have but would have ovaries, the female reproductive organs that release eggs and produce sex hormones.