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  2. Precocious puberty - Wikipedia

    en.wikipedia.org/wiki/Precocious_puberty

    In its broadest sense, and often simplified as early puberty, "precocious puberty" sometimes refers to any physical sex hormone effect, due to any cause, occurring earlier than the usual age, especially when it is being considered as a medical problem.

  3. Prenatal hormones and sexual orientation - Wikipedia

    en.wikipedia.org/wiki/Prenatal_hormones_and...

    As seen in young children as well as in vervet and rhesus monkeys, sexually differentiated behavior in toy preference is differing in males versus females, where females prefer dolls and males prefer toy balls and cars; these preferences can be seen as early as 3–8 months in humans. [2]

  4. Menarche - Wikipedia

    en.wikipedia.org/wiki/Menarche

    In very rare instances, menarche may occur at an unusually early age, preceding thelarche and other signs of puberty. This is termed isolated premature menarche, but other causes of vaginal bleeding must be investigated and excluded. Growth is usually normal. [16] Isolated premature menarche is rarely the first manifestation of precocious puberty.

  5. Maternal physiological changes in pregnancy - Wikipedia

    en.wikipedia.org/wiki/Maternal_physiological...

    Genitourinary Changes in Pregnancy. Progesterone causes many changes to the genitourinary system. A pregnant woman may experience an increase in the size of the kidneys and ureter due to the increase blood volume and vasculature. Later in pregnancy, the woman might develop physiological hydronephrosis and hydroureter, which are normal. [33]

  6. Gonadarche - Wikipedia

    en.wikipedia.org/wiki/Gonadarche

    Gonadarche (/ ˌ ɡ oʊ n ə ˈ d ɑːr k i /) refers to the earliest gonadal (reproductive gland) changes of puberty. [1] In response to pituitary gonadotropins, the ovaries in females and the testes in males begin to grow and increase the production of the sex steroids, especially estradiol and testosterone. [2]

  7. Puberty - Wikipedia

    en.wikipedia.org/wiki/Puberty

    Early-maturing males develop "more aggressive, law-breaking, and alcohol abusing" behaviors, which result in anger towards parents and trouble in school and with the police. Early puberty also correlates with increased sexual activity and a higher instance of teenage pregnancy, both of which can lead to depression and other psychosocial issues ...

  8. Mini-puberty - Wikipedia

    en.wikipedia.org/wiki/Mini-puberty

    Mini-puberty is a transient hormonal activation of the hypothalamic-pituitary-gonadal (HPG) axis that occurs in infants shortly after birth. This period is characterized by a surge in the secretion of gonadotropins (LH and FSH) and sex steroids (testosterone in males and estradiol in females), similar to but less intense than the hormonal changes that occur in puberty during adolescence.

  9. Thelarche - Wikipedia

    en.wikipedia.org/wiki/Thelarche

    Precocious puberty is a condition where children undergo puberty before seven or eight years. [5] Precocious puberty differs from premature thelarche in that the individual experiences additional aspects of puberty, including menarche , adrenarche , pubarche , vaginal discharge , and bone growth, while the sole presence of early thelarche ...