Canine Worm Symptoms

At the park, your dog runs to catch a ball---and you are mortified to see a worm coming out of her anus. Dogs can be infected with many types of worms. Transmission can be via fleas, mother to baby, mosquitoes and even by burrowing through the dog's skin. Seeing a worm makes the diagnosis easy. Symptoms that mimic parasitic infections can be dangerous, so be sure to have your pup checked by a vet.

  1. Feces

    • Worms will be discovered, dead or alive, in the dog's feces. Sometimes they are seen around the anus as they lay eggs.

    Abdominal Distention

    • Abdominal bloating and distention are also a sign of worms caused by parasite colonies in the gut.

    Weight Loss

    • Many dogs with worms will lose their appetite and refuse to eat, causing weight loss.

    Digestive Upset

    • Vomiting and diarrhea are common symptoms of worm infestation. Sometimes dogs will vomit live worms.

    Energy Loss

    • Your dog won't be as active and may tire more quickly than usual. His coat may be dull, and the fur will feel coarse.

    Coughing

    • A typical sign of heartworm infestation is a hoarse cough. Some dogs will experience hiccups.