It appears that your child has a “cryptorchid testicle” which is the medical term for undescended testicle. Most cryptorchid testicles descend spontaneously by 6 months therefore it is generally advised to wait until the child is 6 months in age before a surgical evaluation is undertaken. After 6 months, it is very unlikely for the testicle to descend and the child should be sent for a surgical evaluation if discovered after 6 months. In terms of any health consequences, studies have shown that any abnormality in spermatogenesis (sperm formation) happens after 6 months and therefore there is little concern for any future fertility problems if the child is under 6 months.