我10岁了。最近发现我的“小包包”有时大,有时小,里面还有两个圆圆的可滑动的“小东东”。这样正常吗?读者毛毛阴囊的大小变化,可能会对部分男孩子造成困扰。其实,这是一个有趣的正常的生理现象。精子在生长发育过程中,要保持较恒定的适宜温度,即36℃左右。过高或过低,都会使精子发育 I am 10 years old. Recently I found my “small bag ” sometimes big, sometimes small, there are two round and sliding “little stuff ”. Is this normal? Changes in the size of the reader’s hair scrotum may plague some boys. In fact, this is a funny and normal physiological phenomenon. Sperm in the process of growth and development, to maintain a more appropriate temperature, that is about 36 ℃. Too high or too low, will make sperm development