This anomaly can cause a decrease in fertility or total loss if it is bilateral cryptorchidism. As the testicles do not descend and remain in the abdominal cavity or inguinal canal, the temperature where they are lodged is higher than that necessary for the correct development of spermatogenesis, the production of spermatozoa, to take place. This can cause the death of germ cells and, consequently, an ejaculate without sperm or with altered sperm concentration.
Generally, surgery performed at an early age would solve the fertility problem, since once the testicles are lodged in the scrotum and remain at the proper temperature, they will resume their function. It is also known that early surgery can decrease the risk of testicular tumors, especially for those cryptorchidism in which the location of the testicles is intra-abdominal.