classification, Modern classification is part of the broader science of. taxonomy, the study of the relationships of organisms, which includes collection, preservation, and study of specimens, and analysis of data provided by various areas of biological research.
Undescended testicles (also known as cryptorchidism) is a condition in which one or both of a baby boy's testicles (testes) have not moved down into their proper place in the scrotum.
Your doctor can tell whether your baby has an undescended testicle by checking the baby's scrotum. If your doctor can't feel the testicle inside the scrotum, it's called a nonpalpable testicle. A nonpalpable testicle might be inside the abdomen, too small to feel or not there at all.