What Causes Diarrhea in Dogs(2)

Sudden Onset
When diarrhea comes on very suddenly, that alone may mean you need to see a vet. Dehydration is a serious complication, and this is especially true in puppies and in senior dogs. Dehydration has the potential to be fatal, so if the symptoms come on suddenly and are severe, you should get to your local vet or pet emergency center as soon as possible.

Bloody Diarrhea
If you see bloody diarrhea, contact your animal care doctor immediately. Waiting even a day or two could prove fatal to your pet.

Diarrhea Accompanied by Other Symptoms
If your dog has diarrhea but is otherwise acting normal, there may not be cause for alarm. If however, there are other symptoms such as lethargy, complete lack of interest in food or water or if the animal seems to be in pain, you need to contact your vet immediately.

The above list of dog diarrhea causes is not exhaustive, but it includes some of the most common. If you are worried about what causes diarrhea in dogs, the best thing you can do is talk to your vet. It will help put your mind at ease and rule out any serious causes.