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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.
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 ...
Starting puberty significantly younger than age 8 for girls or age 9 for boys — a condition called precocious puberty — may have lasting repercussions on a child’s mental and physical ...
Today, puberty begins between ages 8 and 13, on average, but some Black girls are seeing the onset as early as 5 years old. This is called precocious puberty, which is rare and affects 1% or less ...
[20] [21] Puberty which starts earlier than usual is known as precocious puberty, and puberty which starts later than usual is known as delayed puberty. Notable among the morphologic changes in size, shape, composition, and functioning of the pubertal body, is the development of secondary sex characteristics , the "filling in" of the child's ...
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.
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.
Adrenarche is sometimes accompanied by the early appearance of axillary and pubic hair. The first androgenic hair resulting from adrenarche can be also transient and disappear before the onset of true puberty. The onset of puberty is associated with high GnRH pulsing, which precedes the rise in sex hormones, LH and FSH. [17]