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本文报道了463例健康男性青少年的睾丸体积、阴茎大小、体表面积和血清睾酮的检测结果。表明这些发育指标均随年龄而增长。13岁时各项指标突增,进入青春发育期。16岁时睾丸体积已达成人大小,17岁时睾酮值达成人水平,身高不再增长。推测骨髓已愈合,提示17岁已达发育成熟期。睾酮水平与睾丸、阴茎、体表面积的增长在9岁前不同步(P>0.05)。睾酮值明显落后,11岁后至16岁明显同步增长(P<0.02),16岁后,宰丸、阴茎变化不大,而睾酮仍持续增长至17岁。体表面积与睾丸体积的关系除7岁组外,均示正相关(P<0.02),表明在正常情况下二者密切相关。
This article reports the testicular volume, penile size, body surface area and test results of serum testosterone in 463 healthy male adolescents. Indicate that these developmental indicators are increasing with age. Thirteen years of sudden increase in various indicators, into the puberty. At 16 years of age, the size of the testis has reached a human size. At age 17, the testosterone level reaches the adult level and no longer increases in height. Presumably bone marrow has healed, suggesting that 17-year-old has reached the developmental maturity. Testosterone levels and testicular, penile, body surface area growth did not synchronize before the age of 9 (P> 0.05). Testosterone values lagged significantly after 11 years of age to 16 years of significant synchronous growth (P <0.02), after 16 years of age, pills, penis did not change much, and testosterone still continued to grow to 17 years. Body surface area and testicular volume in addition to the 7-year-old group, all showed a positive correlation (P <0.02), indicating that under normal circumstances, the two are closely related.