Reproductive Systems Handout
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چکیده
Cryptorchidism: When the testes do not descend, the condition is called ‘cryptorchidism’. The condition occurs in about 3% of full-term infants and about 30% of premature infants. Untreated cryptorchidism on both sides results in sterility because the cells involved in the initial development of sperm are destroyed by the higher temperature of the pelvic cavity. The chance of testicular cancer is 3-50 times greater in cryptorchid testes. The testes of about 80% of boys with cryptorchidism will descend spontaneously during the first year of life. When the testes remain undescended, injection of human chorionic gonatotropin (hCG) given at 2-5 years of age may stimulate descent. If such hormonal treatment is unsuccessful, the condition can be corrected surgically at about age 5.
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