Overview of companion animal neutering welfare benefits for population management and individual health.
Companion animal neutering provides welfare benefits at both individual and population levels. For individuals, neutering eliminates welfare risks from reproductive disease including pyometra and reproductive cancers. At population level, neutering reduces unwanted litters that contribute to stray animal welfare problems and shelter overcrowding. The optimal timing of neutering, particularly for large breed dogs, is an active research area. Subsidised neutering programmes improve welfare access across socioeconomic groups.