Hello, my husband had surgery as a child for one undescended testicle (the other was always normal). The surgery was completely successful and the testicle was secured in the scrotum. I have always been a bit worried about whether this could affect his fertility. He says that the dr at the time told his parents this would not be affected. I have also read that if children have this and end up having to have a testicle removed because it is damaged, providing the other testicle is healthy, fertility should not be affected to any great degree (I presume the same applies to someone whose testicle is not removed but successfully operated on). Does anyone have any experience of this or knows whether it can cause problems?