For instance, there may be a theoretical advantage to bringing down a solitary undescended testis before 1 year of age if the contralateral testis is absent or intra-abdominal.

• 比如，一侧隐睾，而对侧睾丸却如或为腹腔内隐睾，则在1岁内行该侧睾丸下降的意义就更大了。