Of our country girl the intersection of development and age advance adolescence

Of our country girl the intersection of development and age advance adolescence
Yesterday ( April 21 of 2009) ,Study the group in Chinese pediatrics society's endocrine and hereditary metabolic disease " 2009 gold the intersection of match and children grow up the intersection of development and academic forum " Held in Gui Lin. Study a courtyard of pediatrics teaching and research chief of the office Professor Du MinLian, the whole country vice group leader, Zhongshan of group, to reveal while accepting reporter's exclusive special visit, one latest investigation result reveal of our country girl development 9.2 year old on average in age adolescence, advance 3.3 years old than 12.5 years old 30 years ago.
Economic development is to advance the main reason
Du MinLian introduces, since 2003, ad hoc survey of the growth situation that China pediatrics learnt to be been directed against nine more than 40,000 students in middle and primary schools of provincial capital of the whole country including Guangzhou. According to investigation result, of our country girl development 9.2 year old on average in age adolescence. Advance 3.3 years old than 12.5 years old 30 years ago.
Du MinLian passes observation and analysis to a large number of sexual precosity infants for many years, think and impel there are three kinds of factors of age of children's development ahead of time at present, growth is accelerated in the trend, environment for a long time one kind of hormone pollutant effects and absorption contain the food or medicine of sex hormone.
Because social economic development is accelerated, the function of the environmental factor that this generation of children reduce because of improvement, family's living condition superiority, disease of nutrition,etc., the potentiality of growth has been fully expressed, the acceleration trend of growth has appeared, cause the children and teenagers development advance adolescence. And the pollutant of detergent, pesticide and plastics industry is after their chemical constitutions in the nature are degraded to certain extent, the activity with estrogen kind, will cause the abnormal development of genitals and skeleton too.
In addition, some applicable targets generally contain sex hormone for the adult's health products, children will cause the false sexual precosity if children eat in a large amount for a long time.
The height of girl in Guangzhou is increased by 4 centimetres on average
Du MinLian says, the development in adolescence of the girl of our country is advanced, it is the reflection that the social economy of our country is fast-developing, parents, generally the ahead of time child to sex development needn't be too alarmed. Simple development time is advanced, will not be having obvious danger physiologically, have no difference with the crowd who reaches mature period and normal age development, this kind of development is specially called the taking place sexual precosity ahead of time. And sexual precosity of the girls of 90%.
Some parents are anxious, the stature in the future of the child of early development may be short and small. But one reveal to the intersection of the whole country and 10 investigation result of city girl the intersection of breast and early development follow to advance violent and long height, but the final height has not dropped than the past investigation. And sex development and psychological development of most sexual precosity children are balanced, will not produce the too big sex psychological unblance question.
Du MinLian reveals, she has an item of new census data to announce to the outside soon: A courtyard of pediatrics of Zhongshan that she locates, launched the follow-up investigation in 10 years of growth of the east, the west, more than 300 girls of five primary schools of middle part of Guangzhou in the past. Summarize data that come out, reveal girl in 8.4 centimetre about in increase on average every year by youthful puberty just, the investigation of this and America and Europe and other places is unanimous on the whole. And with comparing in the past, between improvement of 1.55 meters and 1.59 meters on average 30 years ago of their final average height, have increased by 4 centimetres.
She reminds, if parents feel child's body has early-maturing inclination, the division of endocrinology of pediatrics that must go to the regular hospital checks, can't believe the advertisements of some health products carelessly.
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