Why Is My Puppy Having Accidents in the House: Common Causes Explained I'll be the first to admit—I'm a fish guy, not a dog trainer. But when my sister brought home an eight-week-old golden retriever last year and kept asking me "why is my puppy having accidents in the house," I realized potty training a puppy has a surprising amount in common with cycling a new aquarium. Both require patience, consistency, and understanding that you're working with biology, not programming a machine. Just like beneficial bacteria need time to colonize a filter media, puppies need time to develop bladder control and learn the communication skills to tell you when they need to go. If you're dealing with puddles and frustration, you're not alone—and more importantly, there's usually a logical explanation. What Is a Puppy Potty Training Accident? When we talk abo ...