Does spaying or neutering a schnauzer affect it? After a dog is spayed or neutered, the hormones in the body are changed and the dog’s personality will change, mostly by becoming more docile and loving. Chenery spay and neuter can prevent some diseases from occurring, making them healthier and live a little longer. Especially for female dogs, the spaying surgery greatly reduces the chance of uterine and ovarian cancer and other diseases.
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