Emerging adulthood and adolescence differ significantly with regard to puberty and hormonal development. They often begin during puberty or early adulthood. Hormonal treatment can be attempted to help individuals with precocious puberty. They are inactive until stimulated by hormonal changes in puberty. Androgens like testosterone are responsible for penis enlargement and elongation during puberty. Androgens are important in male sexual development around birth and at puberty. A intake is as efficacious as hormonal therapy in the induction of growth and puberty. Penis size is positively correlated with increasing testosterone levels during puberty. Exogenous GnRH pulses cause the onset of puberty. Generally, later onset of puberty in girls produces positive outcomes. Researchers have identified an earlier age of the onset of puberty. Biological transitions are stages like puberty or first childbirth. Testicular size can help distinguish between different types of precocious puberty. It occurs across several phases, including prenatal development, puberty, and pregnancy. The ovary changes structure and function beginning at puberty.