In and of itself, a bout of loose stools isn't necessarily cause for alarm. Stress or a change in diet can easily give your cat the runs for a day or two. Occasionally it happens to the best of us, am I right? (Never give your cat dairy products like milk. These are guaranteed to upset your cat's tummy.)
Diarrhea as a stand-alone problem can cause dehydration and loss of electrolytes, but this isn't a concern right away. The bigger issue is that it could be a symptom of another, more serious problem.
How do you know if it's time to take your cat to the vet?
- The diarrhea is bloody. Check the litterbox leavings carefully, looking for blood which is red (fresh) or black (from internal bleeding).
- Your cat shows other signs of illness. Is your cat listless? Has she lost interest in food or water? Do her eyes seem dull and/or goopy? Runny nose? Sneezing or coughing? Are her gums pale? If you gently press her chest and abdomen with your hands, does she cry out?
- The diarrhea has persisted for more than 48 hours. Even if the root cause is minor, after 48 hours of diarrhea your cat can suffer from dehydration. The vet can give her a dose of subcutaneous fluids and electrolytes to help her through it.
- Your cat can't make it to the litterbox and loses control of her bowels suddenly, everywhere, and repeatedly.