[Investigation of reproductive organs of male children and juvenile of the Meng and the Han nationality in Chifeng area].
OBJECTIVE
To investigate the development and the health of reproductive organs of male children and juvenile between the Meng and the Han nationality in the Meng nationality area.


METHODS
Male juvenile(4-18 years old) of the Meng nationality (n = 2,315) and the Han nationality (n = 2,832) were divided into four age groups. Height, weight, length and perimeter of penis, volume of left and right testis and reproductive organs illness were examined.


RESULTS
In 13-18 years group, the developmental speed of reproductive organs was faster in Mongolia male juvenile than that in the Han nationality (P < 0.02). After 13 years old, the developmental speed of reproductive organs of male living in town is faster than that in the country (P < 0.05). Illness of male reproductive organs was common such as hernia, varicocle etc.


CONCLUSIONS
There was difference of developmental status and the prevalence rate of reproductive organs of male children and juvenile between the Meng and the Han nationality.
Gao
Li-Ting
LT
Chifeng Service Center of Family Planning Technique of Inner Mongolia, Chifeng, Inner Mongolia 024000, China.
Zheng
Tian-Sheng
TS
Liu
Ming-Han
MH
Xing
Zhi-Yan
ZY
Li
Hong-Jun
HJ
D000293:Adolescent; D001827:Body Height; D001835:Body Weight; D002648:Child; D002675:Child, Preschool; D002681:China / Q000208:ethnology; D006801:Humans; D008297:Male; D010413:Penis / Q000502:physiology*; D013737:Testis / Q000502:physiology*