Your Dog is Stressed
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.
Your Dog is Excited
Friendly doggos that tend to be affectionate might get excited to meet a new puppy. This isn’t a problem per sé, but it can become one if they get overexcited.
They Might Be Jealous
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.
Their Sex Drive is Being Activated
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.
They’re Experiencing a Medical Issue
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.