Why do dogs’ legs shake during pets? It’s not because they like it.

A dog's kicking leg during scratching is usually an automatic protective reflex, not proof of pleasure. The response may help remove pests, while unusually widespread sensitivity can indicate allergies or skin inflammation.

狗狗被挠时踢腿通常是一种自动保护反射，并不代表它感到愉快。这种反应可能有助于清除害虫，而异常广泛的触碰敏感则可能表明狗狗患有过敏或皮肤炎症。