What info can your veterinarian tell you after a fecal egg count?

Based upon a fecal egg count, your veterinarian can tell you the types of intestinal parasites that are currently shedding eggs in your dog and in general what medications could eliminate the infestation.

The two issues with this are:

First, not all worms shed eggs all the time, so if your vet performs a fecal egg count and doesn't see the eggs it doesn't mean the worm isn't there.

Second, if there is a major infestation with many worms, a single dose of medication may not be enough to clear all the worms. If the infestation appears bad enough (based upon the absolute egg numbers), your vet may elect to give lower doses and plan on repeating the medication several times to prevent toxic shock from too many dead worms in your dog's intestines.