0 An undescended testicle (= the round male sex organs that produce sperm) has not yet gone down from inside the body into the scrotum (= the bag of skin below and behind the penis):
When my son was nine he had two operations to bring down his undescended testicles.
Such disorders include cryptorchism (undescended testes), and congenital abnormalities of the genitourinary tract.
Occasionally, a testicle that seems to be undescended is simply "retractile", ie sometimes it is in the scrotum, sometimes it seems to disappear upwards.
If the testicle is still undescended, he should see a paediatric surgeon before he is one year old.
These chemicals appear to cause malformed penises, undescended testicles and reduced testosterone production in laboratory rats.
