The seriousness of diarrhea depends on how long the diarrhea has persisted and how many other signs accompany the diarrhea. This website uses cookies to improve your experience while you navigate through the website. This causes them to be, well, empty. How Long After Deworming a Puppy are the Worms Gone? Sometimes though, it can take up to 12 hours for your dog to move his (or her) bowels after eating. Diarrhea, the production of loose and frequent stools, is one of the most common G.I. Your dog has diarrhea. The diarrhea outside was the “liquid squirts.” Dog Diarrhea: When is It Serious and How Do I Stop It? I was diagnosed with diverticulosis 40 years ago and do my best to not let waste build up inside me. We also tend to feed a special diet, either home cooked or a prescription diet from your veterinarian. //