Both prescrotal and perineal approaches to castration of adult dogs have been described in the literature. The prescrotal technique can be used more frequently because it is easier to exteriorize the testicles and spermatic cords.1 A scrotal approach is preferred for castration of cats, small mammals, large and small ruminants, horses, and pigs.1-6 A scrotal approach for castrating adult dogs has also been used to safely castrate dogs of any age.7,8  In dogs, this approach offers advantages that include improved cosmesis and decreases in anesthetic and surgical times, incision length and subsequent surgical trauma, postoperative discomfort and self-trauma, and scrotal hematoma formation.7-11 

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