Play is one of the most reliable positive welfare indicators in dogs, serving simultaneously as evidence of good wellbeing and as a need whose fulfillment maintains psychological health.
Dog play represents a direct welfare indicator whose presence or absence signals meaningful information about an animal's state. Dogs who do not play are communicating that their welfare is compromised — by illness, pain, fear, or boredom. Conversely, playful dogs are demonstrating positive emotional states that are intrinsically valuable beyond any behavioral function. Environments and routines that enable daily play — with humans, other dogs, or appropriate toys — are investing in genuine welfare, not merely managing behavior.