The cat should be given no food or water for 4-6 hours before and after sterilization, otherwise the cat's life will be in danger during the operation. If the cat drinks water, it is best to choose other times for sterilization, and the cat should be given supplements during the period. For nutrition, the environment in which cats live and the items they use must be fully disinfected to avoid the breeding of bacteria that may affect the cat’s health.