Meeting a new puppy is quite an event for a dog that already lives in your house. It can be confusing and scary for them, and their anxiety might kick in the hyperactivate drooling process.
Hey, stress and excitement are almost identical in a physiological sense. The heart beats faster, breathing hastens, and the body is ready for action. Friendly doggos that tend to be affectionate might get excited to meet a new puppy.
Jealousy is a strong emotion similar to stress that your furry friend can experience, and when they do, they might drool much more than usual.
You wouldn’t think a puppy can kickstart a sex-driven reaction, but pheromones don’t lie. If your pup is old enough to start becoming sexually mature or is already in heat, it’s rare but possible.
However unlikely it is, coincidences can still happen. It may just be that your furry friend begins to display symptoms of an underlying issue around the same time they meet a new puppy.