Excessively nourish and urge children to be early-maturing " very ripe " Have fecundity

Excessively nourish and urge children to be early-maturing " very ripe " Have fecundity
Baby's breast drum has stood up, is the sexual precosity? Will the milk power contain letting estrogen of child's sexual precosity? At one time, the milk power " hormone door " The news appears in the newspapers in the end frequently, make numerous young mother panic endlessly.
Someone queries, lead to the fact baby's sexual precosity symptom appears, may relate to hormone included in the milk source of milk power. Some baby physique is sensitive, so react fast, strong.
And Ministry of Public Health held the news conference in the afternoon of yesterday, the investigation result announced was: Holy yuans of the intersection of milk and powder detect the intersection of acetic acid and other source sex hormone that first progesterone,etc. forbid, the detection value of endogenous estrogen and progestogen accords with the content range of the domestic and foreign literature report.
However, " sexual precosity " ,Really take the major part in the endocrine clinic of child of children's hospital of Nanjing. It will account for 1/3 of total clinic quantity at ordinary times; Summer vacation time, getting a lot of several than usual even more. These small patients are still less than 10 years old, but ripe phenomena of physiology such as breast increasing, period, pass out semen,etc. appear.
Why now " The sexual precosity " So many? This and hypernutrition, excessively nourishing, does and the movie TV stimulate relation? How should we prevent the child's sexual precosity?
Interview experts: Endocrine head of the department, chief physician of children's hospital of Nanjing Shi Xing
Nourishing gets the sexual precosity
Case: There is a girl 7 years old, because have a meal little, particular about food, ate the snacks, looked thin and small while as a child, in order to let her grow tall and fill out, parents will make a lot of nutriment eaten for her every day. Came down in half a year, she really looks very moist, the height leapt up much quickly too. Parents find daughter's chest begins the dislocated upwarping, the tide came immediately too in period 1-2 years later, if parents have not find time yet to be glad. The doctor diagnoses: Development has been advanced in adolescence, " sexual precosity " (used after a verb to indicate the completion of an action)!
The development in adolescence, reach maturity with the reproductive system and the height is increased rapidly for the characteristic, among them the most noticeable by the development of the reproductive system particularly. The reason is, the development of each system of human body in people's growth, have early late, slow. In this stage before people were born in late arrival for 10 years old, the change of the reproductive system was very small, with growing compared with fast other organs, nearly " take no action " . But once mobilize in adolescence, the development of the reproductive system becomes " like splitting a bamboo " at once ,Very swift and violent, far throw other organs of whole body behind quickly.
" command post " Started ahead of time
This girl is at the age of 7 " The chest rises " ,And then and " the tide comes in period " ,Why say this " The sexual precosity " ? The reason is her adolescence the quilt is ahead of time.
The command system of controlling development is " The hypothalamus - hypophysis - gonad axle " .
Secrete one kind in the hypothalamus " Releasing hormone of gonadotropin " ,Behind this kind of hormone enters the frontal lobe hypophysis through the blood, " order " The hypophyseal cells of frontal lobe release two kinds of hormone - -The corpus luteum is turned into plainly with urging the follicle stimulating hormone.
Two of its cooperation, act on the girl's ovary and the boy's testis, promote its development, and produced and secreted corresponding sex hormone (estrogen, progestogen, androgen) .
This " sex axle " ,From infancy to previous stage of the youth, keep inhibiting the state, with the beginning in adolescence, and begin to start. Start-up time, the girl is 8-13 year, the boy is 9-14.5 year. " sexual precosity " ,Adolescence is started before this.
Begin to increase as the sign by girl's breast development, boy's testis in adolescence. So, our country diagnoses the basic standard of child's sexual precosity is - -
The girl presented breast development before 8 years old, first menses of period appeared before 10 years old; The boy presents testis development before 9 years old, named the sexual precosity.
But according to world children's physical development and age of youthful development, the standard has the tendency to advance, some countries have already advanced the girl's age standard to 7 years old, the boy advances to 9 years old.

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