ds, now 12 months has undescended testicles when he was born but they came down a couple of weeks later. Since then they have been up and down, which I was told by my dh was normal depending on whether he was cold etc. However recently I have noticed they are always up. I tried to get an appt with doctor but nothing for a 'non urgent' case for 2 weeks. Bit worried about the poor lad, does anyone have anyexperience of this? can testes become undescended even if they previously were descended?