Spay & Neuter Definitons
Spaying and neutering are surgical procedures performed in order to prevent pets from reproducing. Both procedures are also sometimes referred to as "sterilizing," "desexing," “altering,” or "fixing" an animal.
The technical term for spaying is ovariohysterectomy. Spay surgery on a female cat or dog involves the removal of both ovaries.
The technical term for neutering is castration. Neuter surgery on a male cat or dog involves the removal of both testicles.
Both procedures are performed under general anesthesia, so your pet isn't "awake" through their surgery. Spaying and neutering are the most common surgical procedures performed on pets in America today and are a permanent, 100% effective means of preventing unwanted litters.