In most cases, it is eventually possible to control even very
difficult cases of diarrhea but it can be a long and frustrating diagnostic process so you have to be a little patient in the early stages.
Adult dogs are typically wormed when specific parasites are found on microscopic exam
of stool samples, except in
cases of bloody
diarrhea where whipworms are suspected, since these parasites are
difficult to diagnose on many stool samples.