Diarrhea
Vomiting
Weight loss
Bloated belly
Visible worms in stool or around the anus
Scooting or dragging the rear on the ground
Worm segments in feces or on bedding
Dull coat
Increased appetite with weight loss
Decreased appetite
Lethargy
Coughing
Pale gums
Itchy anus
Signs of dehydration
Routine fecal test by a veterinarian