Which condition involves an undescended testicle?

The condition that involves an undescended testicle is known as cryptorchidism. This occurs when one or both testicles fail to descend into the scrotum before birth or during the first few months of life. Normally, testicles should descend into the scrotum by the end of pregnancy, but in cases of cryptorchidism, they may remain in the abdomen or inguinal canal. This condition is important to address because undescended testicles can lead to various complications, including fertility issues and an increased risk of testicular cancer later in life.

In contrast, benign prostatic hypertrophy primarily affects older males and involves the enlargement of the prostate gland. Testicular torsion involves the twisting of the testicle, leading to reduced blood flow and requires immediate medical attention. A hydrocele is characterized by the accumulation of fluid around the testicle, not related to the positioning of the testicle itself.