Spaying and neutering is painful.
Veterinarians perform spay and neuter surgeries under a general anesthetic.
Animals usually return to normal activity within 24 to 72 hours. Any discomfort experienced is minimal, and far outweighs the suffering and death caused by uncurbed breeding. Consult your veterinarian for more information. My pet will become fat and lazy. Lack of exercise and overfeeding cause an animal to become overweight.