Cryptorchidism is a common cause of reduced fertility or inability to have children in men. Parents and couples of childbearing age should pay attention to the problem of cryptorchidism. 1. After the birth of a baby boy, parents should remember to check whether the child’s testicles are inside the scrotum on both sides. Especially for children after 1 year old, if testicles are found not in the scrotum, go to a regular hospital for timely treatment. According to domestic and international literature, surgical treatment is recommended within 2 years of age. If treated after 2 years of age, it may have an effect on future fertility. 2.If the surgical treatment is done after 2 years old, the child should pay attention to the testicular development regularly during puberty, and if there is any abnormality, timely consultation is needed. 3.If you are of marriageable age or ready to have children, you must go to a regular hospital early to check the semen quality. If there is no sperm in the semen (checked 3 times and above), you have a chance to have your own children through testicular microsperm extraction. Why microscopic sperm retrieval can produce your own offspring? Generally most of the testicles of patients with late cryptorchidism surgery are only the size of peanut rice (less than 8ml, normal male testicles are usually 15ml, like the size of a date). According to the current research on microscopic sperm extraction, about 50% of patients with azoospermia caused by cryptorchidism will have a very small amount of sperm-producing spermatogenic tubules remaining in the peanut-meter sized testicles, and with the help of an operating microscope to magnify the spermatogenic tubules 20-30 times, like panning for gold in the sand to find them, sometimes we find 1 thick spermatogenic tubule and find more than 10 active sperm that are more precious than gold. chance to have their own offspring through IVF technique.