When dogs stretch upon their owner's arrival, it signifies more than just waking up or boredom; it's a 'greeting stretch' that indicates they feel safe, relaxed, and happy. Dr. Alex Crow, Chief Veterinary Officer at The Net Vet, explains that this behavior is an intentional sign of affection. However, not all stretches are positive; if a dog stretches with its belly low, it may indicate discomfort or pain. Owners should observe their dog's stretching habits closely. Stretching can also serve as a playful signal or a way for dogs to loosen stiff muscles after rest. In some cases, persistent stretching may suggest health issues like joint pain or abdominal discomfort, prompting a visit to the veterinarian. Engaging dogs in play or walks can alleviate boredom-related stretching behaviors, ensuring they remain active and stimulated. Overall, while stretching is often a friendly greeting, it can also serve as a crucial indicator of a dog's well-being.