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Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction.It is initiated by hormonal signals from the brain to the gonads: the ovaries in a female, the testicles in a male.
Boys are generally fertile before they have an adult appearance. [37]: 54 In females, changes in the primary sex characteristics involve growth of the uterus, vagina, and other aspects of the reproductive system. Menarche, the beginning of menstruation, is a relatively late development which follows a long series of hormonal changes. [46]
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.
As puberty begins and sex hormone levels rise, differences appear, though some changes are similar in males and females. Male levels of testosterone directly induce the growth of the genitals, and indirectly (via dihydrotestosterone (DHT)) the prostate. Estradiol and other hormones cause breasts to develop in females.
The best time for surgery is typically after puberty, around 17 to 18, when hormonal levels have stabilized and there is little chance of recurrence. Since your son is 16, it may be advisable to ...
Hormones that express sexual differentiation in humans include: estrogens such as estradiol; progestogens such as progesterone; androgens such as testosterone; The following table lists the typical sexual characteristics in humans (even though some of these can also appear in other animals as well):
Gonadarche marks the beginning of puberty and it is the process in which gonads, or the primary reproductive organs, mature, following stimulation of gonadotropin hormone-releasing hormone (GnRH) release in the hypothalamus. [6] The release of GnRH triggers a release of hormones that activate the maturation of the ovary and testis. [3]
At the age of 12, Patrick Mitchell decided to transition into a female, only to change his mind two years later. Uncomfortable in his own skin, the Australian school boy begged his mother to allow ...