Sometimes baby boys are born with one or both testicles inside the abdomen or groin, rather than in the scrotum. This is called undescended testicles. Orchiopexy is a surgery to lower the testicles into the scrotum. The scrotum is the external sac that holds the testicles.

Undescended testes
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The procedure is used to treat undescended testicles that do not move down on their own.