The appropriate age for having your canine or feline ‘fixed’ may vary depending on their size and health. Generally, we can perform these surgeries between 4-6 months of age, but for some larger dog breeds, we might need to wait longer. For females, it is ideal to have them spayed before they experience their first heat cycle. Your veterinarian will be sure to let you know when it’s time to schedule their surgery, if you’re unsure.