Pubarche

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Pubarche

Pubarche (pronounced: pyoo-BAR-kee) is the term used to describe the onset of pubic hair growth, which is one of the physical changes that occur during puberty.

Etymology

The term "pubarche" is derived from the Latin word "pubes", meaning "adult, full-grown, mature", and the Greek word "arche", meaning "beginning".

Definition

Pubarche refers to the initial emergence of pubic hair in adolescent boys and girls. It is typically one of the first visible signs of puberty, although its onset can vary widely among individuals. Pubarche is often, but not always, associated with other signs of sexual maturation such as thelarche (the onset of breast development) and menarche (the onset of menstruation in girls).

Process

Pubarche is triggered by the increased production of androgens (male sex hormones) by the adrenal glands and the gonads (the ovaries in girls and the testes in boys). The androgens stimulate the growth of pubic hair, as well as other changes associated with puberty such as the deepening of the voice and the development of facial hair in boys.

Related Terms

  • Adrenarche: The maturation of the adrenal glands, which often precedes pubarche and is associated with the production of androgens.
  • Gonadarche: The maturation of the gonads (ovaries in girls and testes in boys), which leads to the production of sex hormones and the onset of puberty.
  • Thelarche: The onset of breast development in girls, which is typically one of the first signs of puberty.
  • Menarche: The onset of menstruation in girls, which typically occurs several years after thelarche and pubarche.

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