Female cats can usually eat about 8 to 12 hours after neutering. However, due to different physiques and body recovery conditions, the time may be longer. It is normal not to eat on the same day, and may not eat during the night or the next morning. Start drinking water and slowly resume eating. Female cats are relatively weak after neutering and need to be fed some nutritional supplements, such as nutritional paste, glucose, lactase, canned cats and freeze-dried cats.