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When do the testes begin moving into the scrotum during fetal development?

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During fetal development, the testes are formed within the abdominal cavity and typically descend into the scrotum during the seventh month of gestation, stimulated by androgens.1

While this is the standard developmental timeline, it is important to note that the testes normally complete their descent around the time of a male infant’s birth. Approximately 2 percent of newborn boys may have an undescended testis at birth, a condition known as cryptorchidism, though this often corrects itself by the age of three months.21