undescended
adjective medical specialized uk/ˌʌn.dɪˈsen.dɪd/ us/ˌʌn.dɪˈsen.dɪd/
（睾丸）未降落的，未落下的
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. 我儿子九岁的时候做了两次手术，以治疗隱睪症问题。
- More examples
- These chemicals appear to cause malformed penises, undescended testicles and reduced testosterone production in laboratory rats.
- If the testicle is still undescended, he should see a paediatric surgeon before he is one year old.
- Occasionally, a testicle that seems to be undescended is simply "retractile", ie sometimes it is in the scrotum, sometimes it seems to disappear upwards.
- Such disorders include cryptorchism (undescended testes), and congenital abnormalities of the genitourinary tract.