The dog is also likely to experience loose and liquid bowel movement.
Diarrhea may also be accompanied by vomiting, weight loss, lethargy, abdominal pains, loss of appetite and several other problems.
In order to establish whether your dog is having a hard time dealing with stomach upsets and diarrhea, you need to compare how her normal poop looks like and how it is now. If you notice that it is either loose, has mucus or if your dog is going for a long call more often, then it may be a chronic issue and hence you should get to a veterinarian as soon as possible. A healthy dog poop is solid but not so hard, it is chocolate brown, log-shaped and moist enough to squish when touched.