#Focus on Men's Health ##2019算数健康大会 #
Cryptorchidism is when one or both testicles stop on the way down and do not enter the ipsilateral scrotum.
When the fetus is in the womb, the testicles are located in the abdominal cavity. During development, the testicles gradually decline from the kidney level. Generally by the 9th month of development, the testicles can fall into the scrotum, and those that have not yet fallen to the scrotum after birth are called cryptorchidism.
About 3% of full-term male infants are born without the testicles descending to the scrotum, and in men the incidence can reach 30% in early childhood.
The child can continue to decline after birth, mainly in the first 3-6 months of birth, after 6 months the chance of the testicle continues to decline, therefore, the newborn immediately after birth examination, such as the scrotal can not feel the testicles, can not diagnose the cryptorchidism, must be re-examined after 6 months of new life.
Among them, according to the position where the cryptorchidism stays, it can be divided into high cryptorchidism and low cryptorchidism. High cryptorchidism, where the testicles are located in the abdominal cavity or near the inner ring of the inguinal canal. Low cryptorchidism, where the testicles are located in the inguinal canal or outer ring.
Cause: The early testicles of the embryo are located in the retroperitoneal space of the subphrenic plane and gradually decline with the development of the embryo, and this descent process is completed by the pituitary action and the pull of the testicular lead. Cryptorchidism can be produced if the pituitary gland is inadequate, if there is an anatomical abnormality during descent, or if the testicular band terminates abnormally.