Why does a cat drool when petted? - briefly
Cats may drool when petted due to extreme relaxation or contentment, which can stimulate their salivary glands, or because they associate the sensation with positive experiences like nursing.
Why does a cat drool when petted? - in detail
When a cat drools while being petted, it is often a sign of extreme relaxation and contentment. This behavior is rooted in their physiological and emotional responses. Cats have scent glands located around their mouths, and when they feel safe and comfortable, these glands can become more active, leading to increased saliva production. Additionally, the act of petting stimulates their parasympathetic nervous system, which governs rest and relaxation. This stimulation can cause a cat to enter a deeply relaxed state, sometimes to the point of falling asleep. In this state, their muscles, including those controlling the jaw, may relax so much that saliva escapes their mouth, resulting in drooling. Some cats may also associate petting with positive experiences from kittenhood, such as nursing, which can trigger a similar response. It’s important to note that while occasional drooling during petting is normal, excessive or sudden drooling could indicate dental issues, oral discomfort, or other health concerns, and should be evaluated by a veterinarian. Understanding this behavior helps cat owners recognize when their pet is truly at ease and enjoying the moment.