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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.
If the cause can be traced to the hypothalamus or pituitary, the cause is considered central. Other names for this type are complete or true precocious puberty. [6] Causes of central precocious puberty can include: hypothalamic hamartoma produces pulsatile gonadotropin-releasing hormone (GnRH) Langerhans cell histiocytosis; McCune–Albright ...
The underlying cause is due to the defective migration of GNRH neurons from olfactory placode to hypothalamus, leading to congenital GNRH deficiency. This leads to olfactory problems such as anosmia, optic defects like color blindness, and results in hypothalmic deficiencies associated with low levels of LH, affecting sex hormone testosterone in males or estrogen and progesterone in females.
Although early puberty in boys is not common, studies suggest that the average age of puberty in boys decreased between 1993 to 2008. The researchers attributed the early onset of puberty in boys ...
Gynecomastia of boys going through puberty. Hormonal imbalance (elevated ratio of estrogen to androgen) during early puberty, either due to decreased androgen production from the adrenals and/or increased conversion of androgens to estrogens, leads to transient gynecomastia in adolescent males.
The researchers discovered that musk ambrette may be able to latch onto a receptor in the brain linked to puberty, causing it to release a hormone called GnRH. GnRH impacts how sexual organs mature.
Onset in women after puberty causes cessation of menstruation, lowered libido, loss of body hair, and hot flashes. In men, it causes impaired muscle and body hair development, gynecomastia , decreased height, erectile dysfunction , and sexual difficulties.
[1] [6] Moreover, puberty is considered delayed if breast development does not start at age 13 or if a female has not had her first period within three years of thelarche. [7] Additionally, secondary breast development occurring before the age of 7 years could be a sign of premature thelarche or precocious puberty. Of note, for some girls ...