Puppy diarrhea can be a sign of various health issues, ranging from mild stomach upset to severe conditions. While some cases can be managed at home, it's essential to monitor your puppy's symptoms and contact your veterinarian if they persist or if your puppy has diarrhea but still playful develops other concerning symptoms. By providing your playful pup with plenty of water and a bland diet, you can help them recover from diarrhea and get back to their playful selves.