Testis that has not reached the bottom of the scrotum by 3 months of age (4months age in preterm) will not come down after that. Previously it was customary to wait upto 1 year of age. But now, as we know that the maturation gets affected, the testis is to be brought down surgically between 6 months and 1 year of age. Those with hernia should have earlier surgery.
If the testis is not felt outside, Ultrasound or MRI even if done is not accurate enough to make any difference to management. If it is felt outside, then the testis is brought down by a daystay operation. If it is not felt, then laparoscopy is used to look for it and if present, used to bring it down. Sometimes this will need to be done in two stages to get the best result.
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